SLEEP CALCULATOR
What time do you want to wake up?
A lightweight tool that uses 90-minute sleep cycles (plus ~15 minutes to fall asleep) to suggest bedtimes or wake-up times. Pick a wake time to get recommended bedtimes, or choose “I’m going to bed now” to get ideal wake-up times.
Select Your Desired Wake Time
Choose the hour you want to wake up.
Choose the minutes for your wake-up time.
Select AM or PM for your wake-up time.
Tip: Most adults feel best after 4–6 full cycles (6–9 hours). This tool assumes ~15 minutes to fall asleep.
Your Results
No results yet
Choose a time and press a button above to see recommended options.