# Bedtime Sleep Cycles

> App to determine optimal wake-up times based on sleep cycles. (iPhone/iPad app by Zachary Howe.)

- Source: https://appshunter.io/ios/app/bedtime-sleep-cycles/id703861888 (this page in markdown: same URL + `.md`)
- Developer: [Zachary Howe](https://appshunter.io/developer/420928661)
- Category: Utilities, Health & Fitness
- Price: Free
- Rating: 5.00/5 from 7 App Store ratings · 13 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.0 · 1 MB
- Languages: American English
- Released: 2013-09-18
- Data updated: 2026-06-06
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/bedtime-sleep-cycles/id703861888/reviews.md

## What is Bedtime Sleep Cycles?

Bedtime is a simple and colorful way to determine what time you should wake up. Just drag and the colored bars around the clock to find a good time to set your alarm for.

- Red is the minimum time of sleep.
- Yellow is a fair night of sleep.
- Blue is the optimal amount of sleep.

Research indicates that waking up in the middle of a sleep cycle causes you to feel tired and groggy. Waking up at the height of your sleep cycle allows you to feel more refreshed for your morning. Planning your night sleep at a timed interval is the best way to achieve this.

Take the pain out of deciding what time to set your alarm and let Bedtime decide.

Bedtime is free, lightweight and has no ads or usage tracking whatsoever.

Please Note: Bedtime is not an alarm clock. Apple does not let apps set the system alarm. Bedtime can only tell you when to set your alarm.

## Key features

- Visualize sleep cycles
- Adjust wake-up times
- Optimal sleep timing
- Red, yellow, blue sleep indicators
- Lightweight design

## Recent user reviews (10 of 13)

All indexed reviews: https://appshunter.io/ios/app/bedtime-sleep-cycles/id703861888/reviews.md

### 1/5 — Hard to remove. No support.

*2022-11-30, version 2.2.1*

Hard to remove. No support.

### 5/5 — Simple and functional

*2018-02-14, version 2.2.1*

Love how simple but useful this app is - I was looking for something to tell me when I will/should wake up in the morning depending on when I go to bed (and approx when to go to bed if I want to wake up a certain time). This does exactly that with no other bloat or distraction!

### 5/5 — Just what I was looking for!

*2018-01-08, version 2.2.1*

This is quite literally exactly what I was looking for when I searched for “sleep cycles” , simple , clean interface and does the job it’s intended to do. Alarm sold separately but whatever , I prefer physical alarm clocks anyway!!!

### 5/5 — Lightweight and beautiful

*2017-01-16, version 2.1.1*

298k, what else is there to like?it is pretty and a nice reminder to sleep more!

### 5/5 — Great Life-hack Utility

*2016-05-27, version 2.0*

I use this app every single day. When I updated my phone, Bedtime didn't get restored from the backup, and it wasn't showing up in App Store search results. I ended up trying a bunch of other sleep cycle apps that didn't really work (for example, if my dog or wife moved around they would decide I was awake and start the alarm) and were full of annoying ads and sound effects. Thank goodness I was able to locate and reinstall Bedtime, because along with coffee, it's one of the main things that keeps me from turning into a zombie!! I love the clean graphics and UI too. I only wish it had an alarm option, but it gets the job done.

### 3/5 — Too simple for me

*2014-11-16, version 2.0*

Very nice and simple app, although almost too simple for me. Only shows times for 3 to 5 sleep cycles (4.5 to 7.5 hrs of sleep). Can't flip to lookup in reverse so that you can plan what times to go to bed in order to wake up at a certain time.

### 2/5 — Confusing

*2014-10-06, version 2.0*

I find it very confusing. i use another app that tells a more accurate time for sleeping.

### 5/5 — I love this app.

*2014-09-20, version 2.0*

Structure, simplicity, focus of this app make me want to use it Daily! 

Thank you, developers. It's awesome.

### 5/5 — Perfect.

*2014-07-31, version 2.0*

Excellent design. Simple, clean, beautiful, intuitive interface. I want to be able to "double/tap" the time display (at the top) in order to reset it / show "the time right now."

### 4/5 — Sleep well!

*2014-05-17, version 2.0*

Fast and incredibly simple. Had to reopen the description though, to make sure I knew what the colors were for

## Frequently asked questions about Bedtime Sleep Cycles

### What is Bedtime Sleep Cycles?

Bedtime Sleep Cycles is a utility app designed to help users determine the optimal time to wake up. It visualizes sleep cycles, allowing users to set alarms for when they are most likely to feel refreshed.

### How does Bedtime Sleep Cycles work?

You drag colored bars around a clock to represent different sleep durations (red for minimum, yellow for fair, blue for optimal). The app then suggests a wake-up time that aligns with the peak of your sleep cycle.

### Is Bedtime Sleep Cycles an alarm clock?

No, Bedtime Sleep Cycles is not an alarm clock. It provides recommendations for when to set your alarm, but it cannot set the system alarm itself due to Apple's app restrictions.

### Does Bedtime Sleep Cycles have ads?

No, Bedtime Sleep Cycles is ad-free. The app description explicitly states that it has no ads or usage tracking whatsoever.

### What devices does Bedtime Sleep Cycles support?

Bedtime Sleep Cycles is supported on iPhone and iPod. It has an age rating of 4+.

### How often is Bedtime Sleep Cycles updated?

The latest version, 2.2.1, was released on November 7, 2017. The app was originally released on September 18, 2013.

### What do users think of Bedtime Sleep Cycles?

User sentiment appears to be very positive, with the app holding a perfect 5.0-star rating from 7 reviews.

### Is Bedtime Sleep Cycles free to use?

Yes, Bedtime Sleep Cycles is completely free to download and use. It does not offer in-app purchases or require a subscription.

## Version history (last 5 releases)

### 2.2.1 — 2017-11-07

This app has been updated by Apple to display the Apple Watch app icon.

- iPhone X support
- Status bar is now shown in app (iPhone X only)

### 2.2 — 2017-05-03

This version fixes a bug on devices that are set to use 24-hour time.

### 2.1.1 — 2016-11-30

Bug fix: the time picker will no longer round selected time to nearest 15 minute interval

### 2.1 — 2016-09-28

Usability enhancements:
- The bedtime clock rotates at 15 minute intervals now, with haptic feedback for iPhone 7 and iPhone 7 Plus
- If you want more precise bedtime selection, you can now tap on the time at the top to use a time picker to select your bedtime

### 2.0 — 2013-09-18

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-06.*