The purpose of this study is to investigate the effect of computerized, home-based cognitive training on sleep quality of older adults with insomnia.

Participants in the cognitive training group train in a computer-based cognitive training program over a period of 12 weeks. An active control group train in a program involving tasks that do not engage high-level cognitive functioning over the same period.

Inclusion Criteria:

• diagnosis of chronic insomnia
• able to use a home personal computer
• have healthy dominant hand functioning
• Hebrew speakers

Exclusion Criteria:

• have any significant visual or hearing impairment
• have any significant medical, neurological or psychiatric illness that might bring about cognitive change
• have sleep disorders other than insomnia
• have any significant medical disease (including cancer, diabetes, liver, kidney, heart or lung disease)
• alcoholism or other drug abuse
• taking any medication known to affect central nervous system functioning other than sleeping pills
• historical evidence suggesting significant psychiatric conditions such as depression, psychosis or neurologic disease