🌙 Optimal Bedtime Calculator

Wake up feeling refreshed by timing your sleep cycles perfectly. Enter your desired wake-up time, and we'll calculate the best times to go to bed.

Your Optimal Bedtimes

If you want to wake up at , you should try to fall asleep at one of these times:

💡 Tip: It takes the average person 14 minutes to fall asleep. These times factor that in!

Why Sleep Cycles Matter

⏱️ 90-Minute Cycles

A complete sleep cycle lasts about 90 minutes. Waking up at the end of a cycle helps you feel more refreshed.

🎯 Optimal Sleep

Most adults need 5-6 complete sleep cycles (7.5-9 hours) per night for optimal health and energy.

🧠 Better Mornings

Waking up mid-cycle can cause grogginess. Timing your wake-up to the end of a cycle helps you feel alert.

More Sleep Tools

🔄 Sleep Cycle Calculator

Calculate wake-up times from your bedtime

Try it

🌊 REM Cycle Calculator

Understand your REM sleep patterns

Try it

☕ Nap Calculator

Find the perfect nap duration

Try it