Sleep Calculator

Beräkna optimala sömnscheman

Sleep Calculator

Plan your bedtime or wake time around 90-minute sleep cycles for fresher mornings.

How It Works

  • • A full sleep cycle lasts about 90 minutes; waking at the end of a cycle feels easier.
  • • Most adults need 4–6 cycles per night (6–9 hours).
  • • We add a ~15 minute buffer for the time it takes to fall asleep.

Privacy & Security

All calculations run locally in your browser. Nothing is stored or transmitted.

Sleep Calculator determines optimal sleep times based on sleep cycles and wake time to improve sleep quality and daytime alertness.

Key Features

Sömncykelberäkning

Wake time optimization

Rekommendationer för läggdags

Sömnstadier

REM-sömnspårning

Analys av sömnkvalitet

Sömnräknare

1

Ange Wake Time

Mata in när du behöver vakna

2

Calculate Cycles

Bestäm optimal sömncykellängd

3

Get Bedtimes

See recommended bedtimes

4

Planera sömn

Justera schemat för optimal vila

Use Cases

Sleep optimization

Skiftschemaläggning

Jetlag återhämtning

Health improvement

Frequently Asked Questions

Hur lång är en sömncykel?

A typical sleep cycle lasts about 90 minutes, consisting of light, deep, and REM sleep stages.

Varför ska jag vakna i slutet av en sömncykel?

Waking at the end of a cycle leaves you feeling more refreshed than waking during deep sleep.

Hur många timmars sömn behöver jag?

Adults typically need 7-9 hours per night, usually 4-6 complete sleep cycles.

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Tool Information

Category
Clock Datum och tidsverktyg
Type
Processed in browser
Tags

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