How to Improve Your Sleep Habits With AI

Two systems shape sleep. Sleep pressure builds the longer you are awake. The circadian rhythm is a roughly 24-hour internal clock set mainly by light. Good sleep habits work with both. A consistent wake time, including on weekends, anchors the clock. Morning daylight strengthens it, and dim light in the evening lets melatonin rise.

The American Academy of Sleep Medicine and the Sleep Research Society recommend that adults regularly sleep 7 or more hours a night. Caffeine has an average half-life of around five hours, though it varies widely between people, so an afternoon coffee can still affect sleep that night. Alcohol can make you drowsy, but it tends to fragment sleep later in the night.

AI can turn these principles into a concrete plan: a fixed wake time, a target bedtime, a caffeine cutoff, and a 30- to 60-minute wind-down with the same steps each night. It can also summarize a sleep diary.

The strongest treatment for chronic insomnia is cognitive behavioral therapy for insomnia (CBT-I). One of its parts is stimulus control, such as getting out of bed if you cannot fall asleep after a while. Another is sleep restriction, which temporarily limits your time in bed. Sleep restriction can increase daytime sleepiness, so it is best done with a clinician or a structured program.

A common misconception is that more time in bed means more sleep. Lying awake for long periods can strengthen the link between bed and being awake. Another is that a sleep tracker's score is the truth. Obsessing over it, sometimes called orthosomnia, can make sleep worse.

See a doctor for any of these: loud snoring with gasping or pauses in breathing; severe daytime sleepiness or drowsy driving; insomnia on three or more nights a week that has lasted three months; an urge to move your legs at night; and acting out your dreams.