Sleep Calculator - Wake Up
Calculate bedtime, sleep cycle
Free · In‑App Purchases · Designed for iPad
Your Brain Needs Good Sleep to Stay Healthy
Not getting enough quality sleep can really hurt your body and mind:
- Forgetfulness:
Poor sleep messes with your memory and makes it harder to remember things.
- Brain Buildup:
When you don’t get deep sleep, harmful stuff can build up in your brain, which is linked to diseases like Alzheimer’s.
- Mood Swings:
Lack of sleep makes anxiety and depression worse, and faster.
- Faster Aging:
Even one bad night can make your body age quicker at the cellular level.
- Weight & Blood Sugar Problems:
Bad sleep confuses your body, making it harder to manage weight and blood sugar.
The science is clear
Your body requires complete 90-minute sleep cycles. Here's why that matters for your health:
- Sharper Brain:
Each full cycle helps your brain process memories, boost focus, and clear out mental fog.
- Deeper Recovery:
You only hit the most healing stages of sleep (like deep and REM) when you complete the full cycle.
- Balanced Hormones:
Full sleep cycles help regulate key hormones like cortisol, insulin, and melatonin, keeping your mood, metabolism, and energy in check.
- Stronger Immunity:
Completing cycles gives your immune system the time it needs to repair, recharge, and fight off illness.
This App Fixes What You're Doing Wrong
We Do the Math for Perfect Sleep
You Have Two Choices:
1. Continue bad sleep patterns and suffering the consequences
2. Let science optimize your sleep starting tonight
The difference between these choices determines whether you'll be sharp and healthy at 50... or forgetful, overweight, and chronically exhausted.
Download Now Before Another Night Damages Your Brain
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://sites.google.com/view/sleep-calculator-wake-up/privacy-policy
Ratings & Reviews
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Improved user experience
The developer, Tharindu Prabath, 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 Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Tharindu Prabath
- Size
- 14 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - iPad
Requires iPadOS 17.6 or later. - Mac
Requires macOS 14.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.3 or later.
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Sleep Calculator Premium $2.99
- Copyright
- © 2025, SHADOWFAX