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Sleep Cycle Bedtime Calculator

Sleep Cycle Bedtime Calculator

Wake Up & Bed Time Schedule

305 ratings
80 reviews
๐Ÿ”ง Utilities
๐Ÿ’ช Health & Fitness
Free
In-App Purchases

Details

Released
January 30, 2023
Updated
October 12, 2026

Features

Developer

Kai Oelfke
โœจPromote your app โœจ
Sleep Cycle Bedtime Calculator screenshot #1 for iPhone
Sleep Cycle Bedtime Calculator screenshot #2 for iPhone
Sleep Cycle Bedtime Calculator screenshot #3 for iPhone
iphone
ipad
watch
๐Ÿงพ$9.99
In-App Purchaseโ†˜๏ธŽ
๐Ÿ“ŒReady
Reviews summaryโ†˜๏ธŽ
โญ80
Reviewsโ†˜๏ธŽ
๐Ÿ“13+ tags
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๐Ÿ”„6+ apps
Alternativesโ†˜๏ธŽ
โ“5 answered
FAQโ†˜๏ธŽ
๐Ÿ“ฆ~ in 2 months
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About

This app helps you determine optimal wake-up and bedtime based on sleep cycles. It calculates ideal times to go to sleep and wake up to feel more refreshed, considering the average 90-minute sleep cycle duration. You can also customize your estimated time to fall asleep.

โœ“Calculate optimal wake-up times
โœ“Calculate optimal bedtime
โœ“Based on 90-minute sleep cycles
โœ“Supports 5-6 sleep cycles
โœ“Customizable fall asleep time
โœ“Apple Watch support
Show original description

What users say about Sleep Cycle Bedtime Calculator

Reviews of Sleep Cycle Bedtime Calculator are mostly positive: the Health & Fitness app is rated 4.1/5 from 305 App Store ratings. What users like most: completely free with no ads or data collection, simple and intuitive user interface. Top complaints: confusing interface for some users, unresponsive touch controls reported. Summarized from real user reviews.

Positive things

  • ๐Ÿ†“Completely free with no ads or data collection
  • ๐Ÿ‘Simple and intuitive user interface
  • ๐ŸŽฏAccurate sleep cycle calculations based on 90-minute cycles
  • โšกQuick and easy to use
  • ๐Ÿ“ŠShows multiple sleep time options and highlights best choices
  • ๐Ÿ”’Respects user privacy with no data tracking
  • ๐Ÿ›๏ธHelps improve sleep quality and morning alertness
  • โš™๏ธAllows flexible adjustment of wake and bedtime settings
  • ๐ŸŽจClean, sleek design without clutter

Negative things

  • ๐Ÿ˜•Confusing interface for some users
  • ๐Ÿ›Unresponsive touch controls reported
  • ๐Ÿ“‰Lacks visual graphs and data visualization
  • โŒNo detailed sleep analysis or insights
  • ๐Ÿ”„Settings reset when app is closed
  • โฐAlarm integration issues
  • ๐Ÿ“ฑNot user-friendly for new users
  • ๐ŸšซLimited functionality compared to other sleep trackers
  • โ“Unclear how to interpret displayed information
See all reviews

What's New in Sleep Cycle Bedtime Calculator

1.0.13

October 12, 2026

Bug fixes and stability improvements

1

Subscriptions & In-App Purchases

SleepCalc Pro Yearly

Unlock SleepCalc Pro

$4.991 Year
3 Days trial
How to cancel Sleep Cycle Bedtime Calculator subscription โ‰๏ธ

User reviews

Most RecentHighest RatedLowest Rated

Sleep Cycle Bedtime Calculator

I had a dream
URum pls read

Simple and works

Straight to the point app that lets me calculate sleep cycles. Itโ€™s free too which is the cherry on top.
Thank you for making this app!
KKay_Dani

Response from developer

Thank you! Happy it helps you plan your sleep. Best, Kai

Syncs with Watch

Synchronized with watch
CClaudave

Sleep Cycle

Very informative! Great!
MRMeat ball rope

Perfect

Honestly just what I was looking for.
Jjjbolt123

Response from developer

Thank you! Best, Kai

See 75 more reviews

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User experience

๐Ÿž

Reported Bugs

5 issues

Touch screen unresponsive

Bug

App settings reset upon closing

Bug

Alarm goes off at unintended times

Bug

Skips certain time slots in calculations

Bug

Confusing icon similarity with Apple Watch app

Bug
โœจ

Requested Features

9 requests

Add graphs and visual data representations

Feature

Integrate with Apple Health or Fitbit data

Feature

Display number of sleep cycles achieved

Feature

Built-in alarm functionality

Feature

Persist settings when closing app

Feature

Multi-language support

Feature

Detailed sleep analysis and personalized insights

Feature

Larger, more detailed charts for phone display

Feature

Calculate wake time from current time

Feature

FAQ

What does the Sleep Cycle Bedtime Calculator do?

This app helps you calculate the best times to go to bed and wake up to maximize rest. It's based on the scientific principle of sleep cycles, which are approximately 90 minutes long, and aims to align your sleep schedule with these cycles for better refreshment.

How does the app calculate sleep and wake times?

The app uses the duration of sleep cycles (around 90 minutes) to determine optimal times. For example, if you need to wake up at a certain time and aim for 5-6 sleep cycles, it will suggest a corresponding bedtime. You can also input your desired wake-up time and the number of cycles you want to achieve.

Can I customize how long it takes me to fall asleep?

Yes, the app allows you to customize your estimated time to fall asleep. Most people take about 15 minutes to fall asleep, and this feature lets you adjust that estimate for more accurate bedtime calculations.

Is this app compatible with Apple Watch?

Yes, the application offers support for Apple Watch. This integration may allow for more seamless tracking or interaction with your sleep schedule directly from your wearable device.

What is the cost of using this app?

The app is available for free and does not appear to have any in-app purchases or advertisements based on the provided information. This means you can use its core functionality without any financial commitment.