90-Minute Sleep Cycles
Sunrise wake-up light for Hue
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Your body knows the perfect moment to wake up. Our app sets your alarm by it – not by a random time. Try it free for 30 days.
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
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, LinguaFlow e.U., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- LinguaFlow e.U.
- Size
- 28.2 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 26.1 or later.
- iPhone
Requires iOS 26.1 or later. - Mac
Requires macOS 26.1 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.1 or later.
- iPhone
- Languages
- English and German
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Premium – Monthly $3.99
- Premium – Annual $19.99
- Copyright
- © 2026 LinguaFlow e.U.