# Smart Sleep Calculator — Easily Calculate Sleep Cycles

> Easily Calculate Sleep Cycles (iPhone/iPad app by SG APPS PRIVATE LIMITED.)

- Source: https://appshunter.io/ios/app/smart-sleep-calculator/id6744327999 (this page in markdown: same URL + `.md`)
- Developer: [SG APPS PRIVATE LIMITED](https://appshunter.io/developer/1507658418)
- Category: Health & Fitness, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 12.0 · 32 MB
- Languages: English
- Released: 2025-04-13
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/smart-sleep-calculator/id6744327999/reviews.md

## What is Smart Sleep Calculator?

Sleep Better, Wake Happier 
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Easy Sleep Calculator helps you find the best time to fall asleep or wake up based on natural sleep cycles so you feel energized, not groggy. Whether you're setting a wake-up alarm or planning your bedtime, our tool makes it easy.

How It Works: 
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Waking up in the middle of a deep REM cycle can leave you feeling tired. Sleep Calculator works as a simple yet powerful bedtime calculator, helping you time your rest in 90-minute sleep intervals so you wake up at the best moment.

Why You'll Love It: 
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Quick and easy: Instantly calculate the best sleep or wake time with no login or setup  
100% private: No accounts, no ads, and we never collect your data  
Totally free: No hidden costs or subscriptions  
Offline support: Use the app anywhere, anytime  
Designed for healthy sleep: Based on science-backed sleep cycle timing

Perfect for anyone who wants:  
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A minimalist sleep tracker alternative  
Help with sleep schedule planning  
A private, no-frills sleep timer  
More energy in the morning

Take control of your sleep. Try Easy Sleep Calculator today—simple, effective, and always free.

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Citation: Le Bon O. Relationships between REM and NREM in the NREM-REM sleep cycle: a review on competing concepts. Sleep Med. 2020 Jun;70:6-16. doi: 10.1016/j.sleep.2020.02.004. Epub 2020 Feb 15. PMID: 32179430 
Citation Link: https://pubmed.ncbi.nlm.nih.gov/32179430/

Privacy Policy: https://www.mindzbase.com/privacy-policy
Terms: https://www.mindzbase.com/terms-of-use


## Version history (last 2 releases)

### 1.0.1 — 2025-04-22

Small fixes

### 1.0 — 2025-04-13

No release notes.

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- [.NET Core Interview Questions](https://appshunter.io/ios/app/net-core-interview-questions/id6742101259)

All apps by SG APPS PRIVATE LIMITED: https://appshunter.io/developer/1507658418

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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 2026-05-17.*