An Investigational Drug Study in Healthy Adult Volunteers in a Model of Insomnia (0928-007)

A Double-Blind, Randomized, Placebo-Controlled, Parallel-Group, Multicenter Study of MK0928 in Healthy Adult Volunteers Participating in a 4-Hour Phase Advance Model of Transient Insomnia

A study to evaluate the safety and effectiveness of an investigational drug for insomnia (a sleep disorder).

Inclusion Criteria:

• Healthy adults who are between the ages of 18 and 64

Exclusion Criteria:

• Adults who are diagnosed with insomnia