BOSTON, MA - Previous research has analyzed variations in sleep patterns including number of hours slept, quality of sleep, and sleep-wake times, and found an association with cognitive impairments, ...

A new study shows that people who have irregular sleep patterns may have a greater chance of developing dementia than those who have more regular sleep patterns. When sleep becomes irregular, the ...

Older adults with irregular sleep patterns--meaning they have no regular bedtime and wakeup schedule, or they get different amounts of sleep each night--are nearly twice as likely to develop ...

Researchers objectively measured sleep and circadian rhythms, and the association to academic performance in college students, finding that irregular patterns of sleep and wakefulness correlated with ...