# 90-Minute Sleep Cycles — Sunrise wake-up light for Hue

> Sunrise wake-up light for Hue (iPhone/iPad app by LinguaFlow e.U..)

- Source: https://appshunter.io/ios/app/90-minute-sleep-cycles/id6787469298 (this page in markdown: same URL + `.md`)
- Developer: [LinguaFlow e.U.](https://appshunter.io/developer/1810022094)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 26.1 · 27 MB
- Languages: American English, German (Germany)
- Released: 2026-07-13
- Data updated: 2026-08-07
- User reviews in markdown: https://appshunter.io/ios/app/90-minute-sleep-cycles/id6787469298/reviews.md

## What is 90?

Wake up when your body is ready – at the end of a sleep cycle instead of in the middle of deep sleep.

Most people get up at a random time – whether they're in deep sleep or not. That's exactly why you often feel groggy in the morning and need a coffee before you can function.

Your sleep runs in cycles of about 90 minutes. Waking at the end of a cycle feels far more natural and refreshed than being torn out of deep sleep. That's where this app comes in: you always start with your wake-up time – not your bedtime. You say "I want to be awake at 7 a.m.", and the app shows you the matching bedtimes and wakes you at the right moment.

HOW IT WORKS
• Choose your wake-up time – the app calculates bedtimes for 3 to 7 complete 90-minute sleep cycles
• Bedtime reminder – a notification lets you know in time so you don't accidentally go to bed too late
• Real system alarm – rings reliably, even when the app is closed
• "I'm going to bed now" – one tap and the app re-plans from this moment

WAKE UP GENTLY WITH PHILIPS HUE
If you have a Philips Hue Bridge, your bedroom itself becomes the sunrise. The light slowly grows brighter before your actual wake-up time, as if the sun were rising in your room. This gives your body the signal "it's morning" before any sound even plays – and little by little you train yourself to wake up almost on your own at the end of a cycle. The alarm tone then becomes just the backup. The entire light automation runs directly on your Hue Bridge and works even when your iPhone is off overnight.

YOUR NIGHT IN THE MORNING
With Apple Health you can see in the morning how your night really went – sleep duration and phases at a glance. Over time you'll learn how many cycles leave you feeling your best.

PREMIUM
All features with one subscription: €23.99 per year (with a 30-day free trial) or €3.99 per month. The subscription renews automatically and can be cancelled anytime in the settings.

REQUIREMENTS
For the light wake-up you need a Philips Hue Bridge (2nd generation) with at least one lamp. The alarm and reminders work without Hue too.

Stop leaving your sleep to chance – wake up when your body is truly ready. 90-minute cycles, a gentle light alarm and clear data in the morning pull you out of the groggy-wake-up rut. Start now with 30 days free.

Terms of Use (EULA): https://90-minute-sleep-cycle.app/en/terms.html
Privacy Policy: https://90-minute-sleep-cycle.app/en/privacy.html

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium – Annual | $19.99 | per year |
| Premium – Monthly | $3.99 | per month |



## Version history (last 1 release)

### 1.0 — 2026-07-13

No release notes.

## More apps by LinguaFlow e.U.

- [LinguaFlow – Language Learning](https://appshunter.io/ios/app/linguaflow-language-learning/id6744939323)
- [LinzNext - Abfahrtsmonitor](https://appshunter.io/ios/app/linznext-abfahrtsmonitor/id6761291824)

All apps by LinguaFlow e.U.: https://appshunter.io/developer/1810022094

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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 2026-08-07.*