Awake at 3 a.m.? Why getting out of bed helps you sleep

Why lying in bed awake backfires

When you lie awake night after night, your brain starts to link your bed with being awake: tossing, checking the clock, worrying. The bed becomes a cue for alertness. Stimulus control breaks that link. You only spend time in bed when you're asleep or about to be, so the bed becomes a cue for sleep again.

Some change in sleep with age is normal. A review of 65 studies covering 3,577 healthy people aged 5 to 102 found that deep sleep decreases in adulthood while time awake during the night increases. After 60, sleep efficiency, the share of time in bed actually spent asleep, keeps slipping. ¹ Lighter sleep is part of getting older. Lying in bed for hours trying to force sleep usually makes it worse.

What the research shows

Sleep specialists recommend it. In its 2021 guideline, the American Academy of Sleep Medicine reviewed behavioral treatments for long-term insomnia. Its strongest recommendation went to cognitive behavioral therapy for insomnia (CBT-I), a structured program that includes stimulus control. It also supported stimulus control as a treatment on its own. The same guideline advised against relying on general sleep hygiene tips alone. ²

It has held up in older adults. In a Norwegian trial of 46 adults with long-term insomnia (average age 61), six weeks of CBT-I, including stimulus control, raised sleep efficiency from 81% to 90%. The gain was still there six months later. People spent less time awake at night and more time in deep sleep. ³

Routine is the foundation. A 2023 National Sleep Foundation report on sleep and aging named five areas to focus on for older adults: light exposure, physical activity, meal timing, the bedroom environment, and a regular sleep schedule. ⁴ A fixed wake time is the part of the schedule you can control. You can't make yourself fall asleep, but you can decide when to get up.

How to do it

Sleep researchers usually describe stimulus control as a few simple rules. Follow all of them for at least two to three weeks: ²

1. Go to bed only when you feel sleepy, not just tired or because it's a certain time.
2. Use the bed only for sleep and intimacy. Read, watch TV, and scroll somewhere else.
3. If you can't fall asleep, or fall back asleep, in about 20 minutes, get up. Go to another room and do something quiet in dim light.
4. Go back to bed when you feel sleepy. If you still can't sleep, get up again. Repeat as often as needed.
5. Get up at the same time every morning, weekends included, however the night went.
6. Keep naps short and early. About 20 to 30 minutes, before mid-afternoon, or skip them for now.

Set up for it before bed

• Put a warm blanket and a lamp with a soft bulb in the room you'll go to
• Keep a paper book, puzzle, or audiobook there
• Turn the bedroom clock away from you
• Get outdoor light in the morning. It helps set your body clock. ⁴

Expect the first week to be harder. You may feel more tired at first. That usually means it's working, as your body learns to link bed with sleep. Most people notice steadier nights within a few weeks.

Go carefully if…

• You're at risk of falling. Getting up at night means walking in the dark. Use night-lights along the path, keep the floor clear, and sit on the edge of the bed for a moment before standing.
• You're very sleepy during the day at first. Don't drive or use machinery when drowsy. Short-term sleepiness is a known side effect as your sleep resets. ²
• You take a sleep medicine. Keep taking it as prescribed. Don't stop or change it without talking to your clinician.
• You snore loudly, gasp or stop breathing in your sleep, or feel exhausted however long you sleep. These can be signs of a medical sleep problem. Ask your clinician.
• Insomnia has lasted for months, or your mood is low. Talk to your clinician. A full CBT-I program with a trained provider or a structured digital program can help.