Short naps: a cautious way to pause and regain alertness

Available reviews sometimes link daytime naps with better subjective alertness or selected performance measures. Results vary with timing, duration, previous sleep and the task that follows. A nap is therefore not a universal recovery switch.

A nap should remain an occasional aid, not a way to regularly compensate for too little night sleep.

Choose a time when you do not need to drive, supervise someone or immediately resume a risky task. Settle somewhere calm, with tolerable light and temperature.

1. 01Set an alarm for a short break, allowing a few minutes to get ready.
2. 02Lie down or sit securely, without trying to force sleep.
3. 03When you wake, open the blinds and allow a transition period before demanding work.
4. 04Notice whether you feel clearer, unchanged or groggier.

Sleep inertia is a transition period in which attention and speed can remain reduced after waking. It varies and may matter if you must make an immediate decision, drive or use equipment.

Leave a buffer before demanding activity. If waking is consistently difficult, shorten the break, change its timing or stop napping.

Some people feel more foggy after a nap or find that it delays bedtime. In that case, try quiet rest without sleeping, daylight or gentle movement, depending on what feels appropriate.