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Time a Power Nap

Use Nap mode to set the perfect alarm for a 10–20 minute power nap or a full 90-minute cycle.

Hakuna kuingia kinachohitajika

Start my nap right now

Quick nap · 10 min · recommended

7:40 PM

A fast recharge — wake clear-headed

Set alarm for

Power nap · 20 min · recommended

7:50 PM

Best for alertness with no grogginess

Set alarm for

Short nap · 30 min

8:00 PM

A little deeper — may feel slightly groggy

Set alarm for

Long nap · 60 min

8:30 PM

Enters deep sleep — good for memory, can wake groggy

Set alarm for

Full cycle · 90 min · recommended

9:00 PM

One complete cycle — wake refreshed after REM

Set alarm for

💡 The best naps are short (10–20 min) so you wake from light sleep feeling alert, or a full 90-minute cycle so you wake after REM. Naps of 30–60 minutes reach deep sleep, which can leave you groggy (“sleep inertia”). Times include ~5 minutes to fall asleep. For the sharpest boost, have your coffee right before a 20-minute nap — the caffeine kicks in as you wake.

Naps tips

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A 10–20 minute power nap keeps you in light sleep so you wake alert; a full 90-minute cycle wakes you cleanly after REM. Both avoid the groggy "sleep inertia" of waking mid-cycle.

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Turn on "Start my nap right now" and the tool sets your alarm time counted from this moment (including ~5 minutes to fall asleep).

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For the sharpest boost, drink a coffee right before a 20-minute nap — the caffeine kicks in just as you wake.

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Nap before 3pm so it doesn't interfere with your night sleep.

Jinsi Inavyofanya Kazi

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😴

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Back to Sleep Cycle Calculator