SleepCycleCalc: Sleep Cycle

TipTinker

Contains adsIn-app purchases

About this app

SleepCycleCalc works out when to go to bed or set your alarm so you wake between sleep cycles instead of in the middle of one. Pick a wake time to get bedtimes, pick a bedtime to get wake times, or use Sleep Now to see when to wake if you go to bed right now.

• Three ways to plan: bedtime from a wake time, wake time from a bedtime, or Sleep Now from the current time.
• Add a fall-asleep buffer for the minutes it takes you to drift off, and save your usual buffer and cycle length so every new plan starts with them.
• Adjust the cycle length around the usual 90 minutes and choose which cycle counts to show.
• Each suggestion shows its number of cycles and total hours of sleep, with a timeline of the night for easy comparison.
• Pick adult, teen or child to highlight the sleep window recommended for that age group.
• Weekly plan: set a wake time for each day and get the bedtime that fits your target number of cycles.
• Clock changes for daylight saving time are taken into account when they fall within the night.
• Quick starts for a 7:00 or 6:00 alarm, an 11:00 bedtime, or a power nap.
• Save plans with notes, undo a deletion, and share a plain-text summary.

General guidance only, not medical advice. Real sleep cycles and sleep needs vary from person to person.

What’s new

Performance improvements and bug fixes