The difference between the total sleep time at baseline and the average total sleep time over the double blind period(average of post-dose values from weeks 3,6,9,12) reported by the participant. The change is calculated as the average over the double blind period minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward. Change calculated as the post-dose measure minus the baseline measure. Number of participants in each arm 194, 194.

The difference between the total sleep time at baseline and at different time points in the double-blind period (weeks 3,6,9,12), the single-blind follow-up (week 14) and the non-drug treatment follow-up (week 16). The change is calculated as the time point value minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward. Change calculated as the post-dose measure minus the baseline measure.

The mean total minutes asleep each night at different time points: baseline(week 0), double-blind phase(weeks 3,6,9,12), the single-blind follow-up(week 14),the non-drug treatment follow-up(week 16), and the double-blind average(average of weeks 3,6,9,12 values).

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

Sleep latency answers how long it takes to fall asleep. The difference between the sleep latency at baseline and the average sleep latency over the double blind period(average of post-dose values from weeks 3,6,9,12) reported by the participant. The change is calculated as the average over the double blind period minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward. Number of participants in each arm 194, 194.

Sleep latency answers the question: How long did it take you to fall asleep last night? The change is calculated as value during double-blind phase(weeks 3,6,9,12), or the single-blind follow-up(week 14), or the non-drug treatment follow-up(week 16) minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

Sleep latency answers the question: How long did it take you to fall asleep last night? Mean values are reported at baseline(week 0), double-blind phase(weeks 3,6,9,12), single-blind follow-up(week 14), non-drug treatment follow-up(week 16), and the average for the entire double-blind phase(average of weeks 3,6,9,12 values).

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

Wake time after sleep onset (WASO) is the time spent awake from sleep onset to final awakening. The difference between WASO at baseline and the average WASO over the double blind period(average of post-dose values from weeks 3,6,9,12). The change is calculated as the average over the double blind period minus the baseline value.

Intent to treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last observation carried forward (LOCF). Number of participants in each arm 194, 194.

Wake time after sleep onset is the time spent awake from sleep onset to final awakening. The change is calculated as value during double-blind phase(weeks 3,6,9,12), or the single-blind follow-up(week 14), or the non-drug treatment follow-up(week 16) minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

Wake time after sleep onset is the time spent awake from sleep onset to final awakening. Mean values are reported at baseline(week 0), double-blind phase(weeks 3,6,9,12), single-blind follow-up(week 14), non-drug treatment follow-up(week 16), and the average for the entire double-blind phase(average of weeks 3,6,9,12 values).

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

The number of awakenings is the number of times a subject wakes up between the initial onset of sleep and the final awakening. The change is calculated as the average over the double blind period (average of post-dose values from weeks 3,6,9,12) minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward. Number of participants in each arm 194, 194.

The number of awakenings refers to the number of times a subject wakes up between the initial onset of sleep and the final awakening. The change is calculated as value during double-blind phase(weeks 3,6,9,12), or the single-blind follow-up(week 14), or the non-drug treatment follow-up(week 16) minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

Number of awakenings is number of times a subject wakes up between initial onset of sleep and final awakening. Mean values are reported at baseline(week 0), double-blind phase(weeks 3,6,9,12), single-blind follow-up(week 14), non-drug treatment follow-up(week 16), and the average for the double-blind phase(average of weeks 3,6,9,12 values).

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

Quality of sleep was rated by participants on a scale of 0-10, with higher scores representing better quality sleep. The change is calculated as the average over the double blind period (average of post-dose values from weeks 3,6,9,12) minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward. Number of participants in each arm 194, 194.

Sleep quality was rated by subjects on a scale from 0-10, with higher scores representing better quality sleep. The change is calculated as value during double-blind phase(weeks 3,6,9,12), or the single-blind follow-up(week 14), or the non-drug treatment follow-up(week 16) minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

Quality of sleep was rated by participants on a scale of 0-10, with higher scores representing better quality sleep. Mean values are reported at baseline(week 0), double-blind phase(weeks 3,6,9,12), single-blind follow-up(week 14), non-drug treatment follow-up(week 16), and the average for the double-blind phase(average of weeks 3,6,9,12 values).

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

Depth of sleep was reported by study participants using a scale from 0-10, with higher scores representing better sleep. The change is calculated as the average over the double blind period (average of post-dose values from weeks 3,6,9,12) minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward. Number of participants in each arm 194, 194.

Depth of sleep was reported by study participants using a scale from 0-10, with higher scores representing better sleep. The change is calculated as value during double-blind phase(weeks 3,6,9,12), or the single-blind follow-up(week 14), or the non-drug treatment follow-up(week 16) minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

Depth of sleep was reported by study participants using a scale from 0-10, with higher scores representing better sleep. Mean values reported: baseline(week 0), double-blind phase(weeks 3,6,9,12), single-blind follow-up(week 14), non-drug treatment follow-up(week 16), and the average for the double-blind phase(average of weeks 3,6,9,12 values).

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

Daytime alertness was rated by study participants on a scale of 0-10, with higher scores representing better alertness. The change is calculated as the average over the double blind period (average of post-dose values from weeks 3,6,9,12) minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward. Number of participants in each arm 194, 194.

Daytime alertness was rated by study participants on a scale of 0-10, with higher scores representing better alertness. The change is calculated as value during double-blind phase(weeks 3,6,9,12), or the single-blind follow-up(week 14), or the non-drug treatment follow-up(week 16) minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

Daytime alertness was rated by study participants on a scale of 0-10, with higher scores representing better alertness. Mean values reported: baseline(week 0), double-blind phase(weeks 3,6,9,12), single-blind follow-up(week 14), non-drug treatment follow-up(week 16), and the average for the double-blind phase(average of weeks 3,6,9,12 values).

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

Ability to function was rated by study participants on a scale of 0-10, with higher scores representing better ability to function. The change is calculated as the average over the double blind period (average of post-dose values from weeks 3,6,9,12) minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward. Number of participants in each arm 194, 194.

Ability to function was rated by study participants on a scale of 0-10, with higher scores representing better ability to function. The change is calculated as value during double-blind phase(weeks 3,6,9,12), or the single-blind follow-up(week 14), or the non-drug treatment follow-up(week 16) minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

Ability to function was rated by study participants on a scale of 0-10, with higher scores representing better ability to function. Mean values reported: baseline(week 0), double-blind phase(weeks 3,6,9,12), single-blind follow-up(week 14), non-drug treatment follow-up(week 16) & average for double-blind phase(average of weeks 3,6,9,12 values).

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

Ability to concentrate was rated by study participants on a scale of 0-10, with higher scores representing better concentration. The change is calculated as the average over the double blind period (average of post-dose values from weeks 3,6,9,12) minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward. Number of participants in each arm 194, 194.

Ability to concentrate was rated by study participants on a scale of 0-10, with higher scores representing better concentration. The change is calculated as value during double-blind phase(weeks 3,6,9,12), or the single-blind follow-up(week 14), or the non-drug treatment follow-up(week 16) minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

Ability to concentrate was rated by study participants on a scale of 0-10, with higher scores representing better concentration. Mean values reported: baseline(week 0), double-blind phase(weeks 3,6,9,12), single-blind follow-up(week 14), non-drug treatment follow-up(week 16) & average for the double-blind phase(average of weeks 3,6,9,12 values).

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

Physical well-being was rated by study participants on a scale of 0-10, with higher scores representing better well-being. The change is calculated as the average over the double blind period (average of post-dose values from weeks 3,6,9,12) minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward. Number of participants in each arm 194, 194.

Physical well-being was rated by study participants on a scale of 0-10, with higher scores representing better well-being. The change is calculated as value during double-blind phase(weeks 3,6,9,12), or the single-blind follow-up(week 14), or the non-drug treatment follow-up(week 16) minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

Physical well-being was rated by study participants on a scale of 0-10, with higher scores representing better well-being. Mean values reported: baseline(week 0), double-blind phase(weeks 3,6,9,12), single-blind follow-up(week 14), non-drug treatment follow-up(week 16), & average for double-blind phase(average of weeks 3,6,9,12 values).

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

Change from baseline in the number of naps per week for subjects who napped during the baseline period. The change is calculated as the average over the double blind period (average of post-dose values from weeks 3,6,9,12) minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment and who napped at baseline are included. Last Observation Carried Forward. Number of participants in each arm 194, 194.

Change from baseline in the number of naps per week for subjects who napped during the baseline period. The change is calculated as value during double-blind phase(weeks 3,6,9,12), or the single-blind follow-up(week 14), or the non-drug treatment follow-up(week 16) minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment and who napped at baseline are included. Last Observation Carried Forward.

The mean number of naps per week for subjects who napped during the baseline period. Mean values are reported at baseline(week 0), double-blind phase(weeks 3,6,9,12), single-blind follow-up(week 14), non-drug treatment follow-up(week 16), and the average for the double-blind phase(average of weeks 3,6,9,12 values).

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment and who napped at baseline are included. Last Observation Carried Forward.

Change from baseline in the total time (minutes) spent napping per week for subjects who napped during the baseline period. The change is calculated as the average over the double blind period (average of post-dose values from weeks 3,6,9,12) minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment and who napped at baseline are included. Last Observation Carried Forward. Number of participants in each arm 194, 194.

Change from baseline in the total time (minutes) spent napping per week for subjects who napped during the baseline period. The change is calculated as value during double-blind phase(weeks 3,6,9,12), or the single-blind follow-up(week 14), or the non-drug treatment follow-up(week 16) minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment and who napped at baseline are included. Last Observation Carried Forward.

The total time (minutes) spent napping per week for subjects who napped during the baseline period. Mean values are reported at baseline(week 0), double-blind phase(weeks 3,6,9,12), single-blind follow-up(week 14), non-drug treatment follow-up(week 16), and the average for the double-blind phase(average of weeks 3,6,9,12 values).

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment and who napped at baseline are included. Last Observation Carried Forward.

Change from baseline in the total time spent napping per week stated as a percentage of the total time asleep for subjects who napped during the baseline period. The change is calculated as the average over the double blind period (average of post-dose values from weeks 3,6,9,12) minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment and who napped at baseline are included. Last Observation Carried Forward. Number of participants in each arm 194, 194.

Change from baseline in the total time spent napping per week stated as a percentage of the total time asleep for subjects who napped during the baseline period. The change is calculated as value during double-blind phase(weeks 3,6,9,12), or the single-blind follow-up(week 14), or the non-drug treatment follow-up(week 16) minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment and who napped at baseline are included. Last Observation Carried Forward.

Total time spent napping per week stated as a percentage of total time asleep for subjects who napped during baseline period. Mean values reported: baseline(week 0), double-blind phase(weeks 3,6,9,12), single-blind follow-up(week14), non-drug treatment follow-up(week 16), & average for double-blind phase(average of weeks 3,6,9,12 values).

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment and who napped at baseline are included. Last Observation Carried Forward.

Participants who wore an actigraph wrist monitor, which monitors rest and activity cycles are included; the resultant data had total sleep time calculated by a Central Reader. The change is calculated as the average over the double blind period (average of post-dose values from weeks 1,4,7,12) minus the baseline value.

The subset population wore an actigraph wrist monitor device every day between Weeks -1 and 16. A total of 17 weeks of actigraphy data was collected but only 7 weeks (Weeks 0,1,4,7,12,13,15) of actigraphy data was overread by a Central Reader and had sleep parameters calculated. Last Observation Carried Forward.Actigraphy population N=72,69.

Change from baseline in total sleep time for the subset population who wore an actigraph wrist monitor. The actigraph monitors rest and activity cycles; the resultant data had sleep parameters calculated by a Central Reader. The change is calculated as time point value minus the baseline value.

The subset population wore an actigraph wrist monitor device every day between Weeks -1 and 16. A total of 17 weeks of actigraphy data was collected but only 7 weeks (Weeks 0,1,4,7,12,13,15) of actigraphy data was overread by a Central Reader and had sleep parameters calculated. Last Observation Carried Forward.

Total sleep time for subset who wore actigraph wrist monitor which monitors rest and activity cycles, sleep parameters calculated by Central Reader. Mean values reported:baseline(week0), double-blind(weeks1,4,7,12), single-blind follow-up(week13), non-drug follow-up(week15) & average for double-blind(average of weeks1,4,7,12 values).

The subset population wore an actigraph wrist monitor device every day between Weeks -1 and 16. A total of 17 weeks of actigraphy data was collected but only 7 weeks (Weeks 0,1,4,7,12,13,15) of actigraphy data was overread by a Central Reader and had sleep parameters calculated. Last Observation Carried Forward.

Sleep latency is the time it takes to fall asleep. Participants who wore an actigraph wrist monitor to record rest and activity cycles are included; a Central Reader calculated sleep parameters. The change is calculated as the average over the double blind period (average of post-dose values from weeks 1,4,7,12) minus the baseline value.

The subset population wore an actigraph wrist monitor device every day between Weeks -1 and 16. A total of 17 weeks of actigraphy data was collected but only 7 weeks (Weeks 0,1,4,7,12,13,15) of actigraphy data was overread by a Central Reader and had sleep parameters calculated. Last Observation Carried Forward.Actigraphy population N=72,69.

Sleep latency is a measurement of the time it takes to fall asleep. Participants who wore an actigraph wrist monitor to record rest and activity cycles are included; a Central Reader calculated sleep parameters. The change is calculated as time point value minus the baseline value.

The subset population wore an actigraph wrist monitor device every day between Weeks -1 and 16. A total of 17 weeks of actigraphy data was collected but only 7 weeks (Weeks 0,1,4,7,12,13,15) of actigraphy data was overread by a Central Reader and had sleep parameters calculated. Last Observation Carried Forward.

Sleep latency:measurement of time to fall asleep. Values are for subset who wore an actigraph wrist monitor which monitors rest and activity cycles; sleep parameters calculated by Central Reader.

The subset population wore an actigraph wrist monitor device every day between Weeks -1 and 16. Mean values reported:baseline(week0), double-blind (weeks 1,4,7,12), single-blind follow-up(week13), non-drug treatment follow-up(week15) & average for double-blind (average of weeks 1,4,7,12 values). Last Observation Carried Forward.

Wake time after sleep onset is the time spent awake from sleep onset to final awakening. Change is calculated as average over double blind period (average of post-dose values from weeks 1,4,7,12) minus the baseline value.

The subset population wore an actigraph wrist monitor device every day between Weeks -1 and 16. A total of 17 weeks of actigraphy data was collected but only 7 weeks (Weeks 0,1,4,7,12,13,15) of actigraphy data was overread by a Central Reader and had sleep parameters calculated. Last Observation Carried Forward.Actigraphy population N=72,69.

Wake time after sleep onset is the time spent awake from sleep onset to final awakening. Participants who wore an actigraph wrist monitor to record rest and activity cycles are included; a Central Reader calculated sleep parameters. The change is calculated as time point value minus the baseline value.

The subset population wore an actigraph wrist monitor device every day between Weeks -1 and 16. A total of 17 weeks of actigraphy data was collected but only 7 weeks (Weeks 0,1,4,7,12,13,15) of actigraphy data was overread by a Central Reader and had sleep parameters calculated. Last Observation Carried Forward.

Wake time after sleep onset is time spent awake from sleep onset to final awakening. Mean values reported: baseline(week 0), double-blind phase(weeks 1,4,7,12), single-blind follow-up(week 13), non-drug treatment follow-up(week 15) & average for double-blind phase(average of weeks 1,4,7,12 values).

The subset population wore an actigraph wrist monitor device every day between Weeks -1 and 16. A total of 17 weeks of actigraphy data was collected but only 7 weeks (Weeks 0,1,4,7,12,13,15) of actigraphy data was overread by a Central Reader and had sleep parameters calculated. Last Observation Carried Forward.

Number of awakenings refers to the number of times a subject awakens between first sleep onset to final awakening. Change is calculated as average over double blind period (average of post-dose values from weeks 1,4,7,12) minus the baseline value.

The subset population wore an actigraph wrist monitor device every day between Weeks -1 and 16. A total of 17 weeks of actigraphy data was collected but only 7 weeks (Weeks 0,1,4,7,12,13,15) of actigraphy data was overread by a Central Reader and had sleep parameters calculated. Last Observation Carried Forward.Actigraphy population N=72,69.

Number of awakenings refers to the number of times a subject awakens between first sleep onset to final awakening. Participants who wore an actigraph wrist monitor to record rest and activity cycles are included; a Central Reader calculated sleep parameters. The change is calculated as time point value minus the baseline value.

The subset population wore an actigraph wrist monitor device every day between Weeks -1 and 16. A total of 17 weeks of actigraphy data was collected but only 7 weeks (Weeks 0,1,4,7,12,13,15) of actigraphy data was overread by a Central Reader and had sleep parameters calculated. Last Observation Carried Forward.

Number of awakenings refers to the number of times a subject awakens between first sleep onset to final awakening. Mean values are reported at baseline(week 0), double-blind phase(weeks 1,4,7,12), single-blind follow-up(week 13), non-drug treatment follow-up(week 15), and the average for the double-blind phase(average of weeks 1,4,7,12 values).

The subset population wore an actigraph wrist monitor device every day between Weeks -1 and 16. A total of 17 weeks of actigraphy data was collected but only 7 weeks (Weeks 0,1,4,7,12,13,15) of actigraphy data was overread by a Central Reader and had sleep parameters calculated. Last Observation Carried Forward.

Change from baseline in the number of naps per week for subjects who napped during the baseline period. Change is calculated as the average over the double blind period (average of post-dose values from weeks 1,4,7,12) minus the baseline value.

The subset population wore an actigraph wrist monitor device every day between Weeks -1 and 16. A total of 17 weeks of actigraphy data was collected but only 7 weeks (Weeks 0,1,4,7,12,13,15) of actigraphy data was overread by a Central Reader and had sleep parameters calculated. Last Observation Carried Forward.Actigraphy population N=72,69.

Change from baseline in the number of naps per week for subjects who napped during the baseline period. Participants who wore an actigraph wrist monitor to record rest and activity cycles are included; a Central Reader calculated sleep parameters. The change is calculated as time point value minus the baseline value.

The subset population wore an actigraph wrist monitor device every day between Weeks -1 and 16. A total of 17 weeks of actigraphy data was collected but only 7 weeks (Weeks 0,1,4,7,12,13,15) of actigraphy data was overread by a Central Reader and had sleep parameters calculated. Last Observation Carried Forward.

The number of naps per week for subjects who napped during the baseline period. Mean values are reported at baseline(week 0), double-blind phase(weeks 1,4,7,12), single-blind follow-up(week 13), non-drug treatment follow-up(week 15), and the average for the double-blind phase(average of weeks 1,4,7,12 values).

The subset population wore an actigraph wrist monitor device every day between Weeks -1 and 16. A total of 17 weeks of actigraphy data was collected but only 7 weeks (Weeks 0,1,4,7,12,13,15) of actigraphy data was overread by a Central Reader and had sleep parameters calculated. Last Observation Carried Forward.

Change from baseline in the total nap time per week for subjects who napped during the baseline period. Change is calculated as the average over the double blind period (average of post-dose values from weeks 1,4,7,12) minus the baseline value.

The subset population wore an actigraph wrist monitor device every day between Weeks -1 and 16. A total of 17 weeks of actigraphy data was collected but only 7 weeks (Weeks 0,1,4,7,12,13,15) of actigraphy data was overread by a Central Reader and had sleep parameters calculated. Last Observation Carried Forward.Actigraphy population N=72,69.

Change from baseline in the total nap time per week for subjects who napped during the baseline period. Participants who wore an actigraph wrist monitor to record rest and activity cycles are included; a Central Reader calculated sleep parameters. The change is calculated as time point value minus the baseline value.

The subset population wore an actigraph wrist monitor device every day between Weeks -1 and 16. A total of 17 weeks of actigraphy data was collected but only 7 weeks (Weeks 0,1,4,7,12,13,15) of actigraphy data was overread by a Central Reader and had sleep parameters calculated. Last Observation Carried Forward.

The total nap time per week for subjects who napped during the baseline period. Mean values are reported at baseline(week 0), double-blind phase(weeks 1,4,7,12), single-blind follow-up(week 13), non-drug treatment follow-up(week 15), and the average for the double-blind phase(average of weeks 1,4,7,12 values).

The subset population wore an actigraph wrist monitor device every day between Weeks -1 and 16. A total of 17 weeks of actigraphy data was collected but only 7 weeks (Weeks 0,1,4,7,12,13,15) of actigraphy data was overread by a Central Reader and had sleep parameters calculated. Last Observation Carried Forward.

Change from baseline in the total time spent napping per week as a percent of the total time asleep for subjects who napped during the baseline period. Change is calculated as the average over the double blind period (average of post-dose values from weeks 1,4,7,12) minus the baseline value.

The subset population wore an actigraph wrist monitor device every day between Weeks -1 and 16. A total of 17 weeks of actigraphy data was collected but only 7 weeks (Weeks 0,1,4,7,12,13,15) of actigraphy data was overread by a Central Reader and had sleep parameters calculated. Last Observation Carried Forward.Actigraphy population N=72,69.

Change from baseline in total time spent napping per week as a percent of total time asleep for subjects who napped during the baseline period. Change is calculated as time point value minus the baseline value.

The subset population wore an actigraph wrist monitor device every day between Weeks -1 and 16. A total of 17 weeks of actigraphy data was collected but only 7 weeks (Weeks 0,1,4,7,12,13,15) of actigraphy data was overread by a Central Reader and had sleep parameters calculated. Last Observation Carried Forward.

The total time spent napping per week as a percent of the total time asleep for subjects who napped during the baseline period. Mean values reported: baseline(week 0), double-blind phase(weeks 1,4,7,12), single-blind follow-up(week 13), non-drug treatment follow-up(week 15) & average for double-blind phase(average of weeks 1,4,7,12 values).

The subset population wore an actigraph wrist monitor device every day between Weeks -1 and 16. A total of 17 weeks of actigraphy data was collected but only 7 weeks (Weeks 0,1,4,7,12,13,15) of actigraphy data was overread by a Central Reader and had sleep parameters calculated. Last Observation Carried Forward.

Change from baseline in the Insomnia Severity Index Total Score which ranges from 0-28. Lower scores represent better sleep. The change is calculated as the average over the double blind period (average of post-dose values from weeks 3,6,9,12) minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward. Number of participants in each arm 194, 194.

Change from baseline in the Insomnia Severity Index Total Score which ranges from 0-28. Lower scores represent better sleep. The change is calculated as time point value minus the baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

The Insomnia Severity Index Total Score ranges from 0-28. Lower scores represent better sleep. Mean values are reported at baseline(week 0), double-blind phase(weeks 3,6,9,12), single-blind follow-up(week 14), non-drug treatment follow-up(week 16), and the average for the double-blind phase(average of weeks 3,6,9,12 values).

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

Physical component summary of Short Form-36 Scale measures subject's perception of their physical health, where the normal mean for general US population is 50.Scores above/below 50 represent better than/worse than the general US population. Higher scores represent better outcomes. Change is calculated as time point value minus baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

This scale measures subject's perception of their physical health, where the normal mean for general US population is 50.Scores above/below 50 represent better/worse than general US population. Change calculated as time point value minus baseline value: baseline(week0), double-blind (weeks 6,12)and non-drug treatment follow-up(week16).

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

Mental component summary of Short Form-36 Scale measures subject's perception of their physical health, where the normal mean for general US population is 50. Scores above/below 50 represent better than/worse than the general US population. Higher scores represent better outcomes. Change is calculated as time point value minus baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

This scale measures subject's perception of their physical health, where normal mean for general US population is 50. Scores above/below 50 represent better/worse than general US population. Change calculated: time point value minus baseline value. Mean values: baseline(week0), double-blind phase(weeks 6,12)& non-drug treatment follow-up(week 16).

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

Sheehan Disability Scale Total Score (range 0-30)measures subject's level of disability & includes: work/school, social life, family life/home responsibilities, days lost &days underproductive; higher scores represent higher degree of disability/impairment. Change is calculated as time point value minus baseline value.

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.

Sheehan Disability Scale Total Score (range 0-30) measures subject's level of disability; includes work/school, social life, family life/home responsibilities, days lost, days underproductive; higher scores represent higher degree of disability/impairment. Mean values reported: baseline, double-blind(weeks 6,12)& follow-up(weeks 14,16).

Intention to Treat (ITT) population; Only subjects in the ITT population with at least one post-dose assessment are included. Last Observation Carried Forward.