# Sleepytime Sleep Scheduler

> Calculates bedtime and wake-up times based on estimated sleep cycles. (iPhone/iPad app by Neophytos Palettas.)

- Source: https://appshunter.io/ios/app/sleepytime-sleep-scheduler/id647389152 (this page in markdown: same URL + `.md`)
- Developer: [Neophytos Palettas](https://appshunter.io/developer/431046534)
- Category: Utilities, Lifestyle
- Price: Free
- Rating: 4.69/5 from 159 App Store ratings · 91 written reviews indexed
- Age rating: 4+
- Requires: iOS 7.0 · 4 MB
- Languages: English
- Released: 2013-05-21
- Data updated: 2026-09-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/sleepytime-sleep-scheduler/id647389152/reviews.md

## What is Sleepytime Sleep Scheduler?

Sleepytime helps you figure out when to go to sleep and when to wake up, by estimating sleep cycles based on 90 minutes each.

## Key features

- Sleep cycle estimation
- Optimal bedtime calculation
- Wake-up time calculation
- Sleep schedule planning

## What do users think of Sleepytime Sleep Scheduler?

Overall sentiment: positive

**Pros**

- 😴 Effective sleep cycle calculation improves wake-up quality
- 👍 Simple and intuitive user interface
- 🆓 Completely free with no ads or paywalls
- 🎨 Beautiful, minimalist design and aesthetics
- ⚡ Lightweight and fast performance
- 🧠 Scientifically-based 90-minute sleep cycle approach
- 📱 Reliable daily usage over years
- 🔄 Easy navigation with swipe gestures
- 💪 Helps users wake up refreshed and energized

**Cons**

- 🐛 'Pick a time' feature frequently broken or non-functional
- 📱 UI not optimized for newer/taller iPhone screens
- ⏰ No built-in alarm functionality
- 🔧 App appears outdated and hasn't been updated recently
- ⚙️ Fixed 14-minute sleep onset time not customizable
- 📊 Limited features compared to competitor apps

**Commonly reported bugs**

- Pick a time calculator returns 12:00 AM for all cycles
- Pick a time feature shows 'null' values
- App not responsive to wake time input selection
- Inconsistent calculation results after updates
- UI scaling issues on newer iPhone models

**Most requested features**

- Widget functionality for quick access
- Built-in alarm that can be set from suggested times
- Customizable sleep onset time (currently fixed at 14 minutes)
- Direct integration with Clock app
- Donation/support option for continued development
- Updated UI for modern iPhone screen sizes
- Snooze feature that respects sleep cycles
- Reminder notifications for bedtime
- Option to set alarms directly from recommended times

## Recent user reviews (10 of 91)

All indexed reviews: https://appshunter.io/ios/app/sleepytime-sleep-scheduler/id647389152/reviews.md

### 5/5 — Literally the best app ever

*2026-07-21, version 2.0*

You have saved my life so many times I love you dev. This app is perfect in every single way. A gift to humanity.

### 5/5 — Very good! Especially if you have trouble getting up in the morning.

*2025-05-19, version 2.0*

I don’t sleep enough hours all the time and half my struggle is just waking up and not feeling awful and unrested. This app really helps me wake up within a good time frame where I at least don’t feel like a brain fogged zombie.

### 5/5 — widget feature

*2024-12-15, version 2.0*

I love that this app is ad-free. I think it would be even BETTER if it could become a widget

### 5/5 — perfect

*2024-07-29, version 2.0*

this app is just perfect. no ads. no paywall. just a simple app, providing a simple purpose, but creating such a positive impact. I just love it. not too many like this one these days

### 5/5 — I love this app so much

*2024-06-21, version 2.0*

I just wanted to leave a review bc y’all are underrated. No ads or paywalls and I use this app once a day everyday usually and it’s a life saver. I have an absolutely unhinged sleeping schedule and with this app it lets me know the optimal times i should be sleeping. Like for example if i’ve been up all night but i need to get up tmr at 7, i might wake up feeling more refreshed if i wake up at like 6:47  opposed to 7 as you might think. Or on the other hand it’s easy for setting a bed time, and even if i know i can’t get my full 6 sleep cycles i know the next best time. And the pick a time feature lets you chose rise time and bed time. It’s just so simple and i’ve been using this for like atleast a year i wanna say. probably longer. I just want the devolved of this app to know your a godsend . It’s simple and effective

### 5/5 — This simplifies setting my alarm.

*2024-05-19, version 2.0*

I have insomnia. Before bed every night, i would calculate how many sleep cycles I could complete before waking up for work. Too much math, honestly. The U.I is simple but I appreciate its functionality. I use it every night, this is an amazing app

### 5/5 — Really useful

*2024-01-31, version 2.0*

Help me to manage my sleep and wake up rested.

### 5/5 — This app has been a life saver.

*2024-01-23, version 2.0*

This app has been such an incredible resource to my partner and me for many years. We are both neurodivergent and struggle with getting enough sleep as well as managing our bedtimes. Sleepytime helps us know when to lie down for bed so that we experience full sleep cycles and don't set our alarms to wake us up in the middle of a sleep cycle, potentially during deep sleep. Waking from a deep sleep will cause grogginess and that can negatively impact someone's entire day! This app has helped mitigate a lot of the problems we had for years with waking up- the foggy heads, super groggy feelings, etc.

### 5/5 — Does the job very well

*2023-08-29, version 2.0*

It helped me wake up feeling fulfilled and energized after studying until 2 am when I had school at 5:30. I don’t know how it managed to do this, but it did. So I had to drop a positive review to this app to let other people know as well for sure.

### 5/5 — Ol’e reliable

*2023-07-23, version 2.0*

Always works. Simple and pleasing UI. Nothing to complain about. 10/10.

## Frequently asked questions about Sleepytime Sleep Scheduler

### What does Sleepytime Sleep Scheduler do?

Sleepytime Sleep Scheduler helps you determine the best times to go to sleep and wake up. It does this by estimating your sleep cycles, which are believed to last approximately 90 minutes each.

### How does the app calculate sleep times?

The app calculates sleep times by using the 90-minute sleep cycle estimation. By inputting your desired wake-up time, it can then suggest optimal bedtimes to align with the end of a sleep cycle.

### Is Sleepytime Sleep Scheduler free to use?

Yes, the application is available for free. There are no in-app purchases or advertisements mentioned, indicating a completely free user experience.

### What is the main benefit of using this app?

The main benefit is achieving more restful sleep by waking up at the end of a sleep cycle, rather than in the middle of one. This can lead to feeling more refreshed and less groggy upon waking.

## Version history (last 3 releases)

### 2.0 — 2014-12-16

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

Sleepytime has a fresh new look!
* Updated for iOS 8, iPhone 6 & 6 Plus
* Fixed some bugs

### 1.2 — 2013-09-17

Now optimized for iOS 7

### 1.1 — 2013-05-21

No release notes.

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## More apps by Neophytos Palettas

- [Coindex](https://appshunter.io/ios/app/coindex/id1251487103)

All apps by Neophytos Palettas: https://appshunter.io/developer/431046534

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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 2026-09-01.*