● Guaranteed to improve your sleep and health. No ads. No paid subscription.
● Helping millions improve their health, wellness, and now sleep.
● Sleep more efficiently tonight and wake up refreshed! You deserve better sleep.

“The alarm wakes you up naturally during your lightest sleep phase. Simple and brilliant.”

“I’m a super heavy sleeper and have a history of sleeping through alarms. I usually set two alarms to ensure I wake up on time and I always wake up groggy. You know those rare days when you wake up at that perfect time where you aren’t sleepy? Well everyday is that day now! Simply put, it’s amazing and it works.”

Do you have a hard time waking up? Do you wake up groggy?

Start your day right and wake up feeling refreshed. Studies have shown that interrupted sleep may be as harmful as no sleep at all.


There are a number of sleep stages your body goes through when you are sleeping at night. It’s far more difficult to wake up during deep sleep because the rest of your body is still sleeping. Waking up during light sleep is the most optimal way to wake up feeling energized and refreshed.


Set your alarm and place your phone next to you before you sleep. Zen Sleep Cycle Alarm Clock analyzes your sleep cycles and wakes you up at your lightest stage of sleep within a 30 minute window of your alarm. You’ll wake up naturally feeling refreshed and energized.


The app has many features to actually help you get better at sleeping. It measures your sleep efficiency every night and shows each stage of sleep. Track and analyze your sleep patterns and log events that affect your sleep efficiency. Start keeping a record of your dream logs! You’ll discover new and interesting things that can help you along your journey. Eating late might cause vivid dreams. Maybe using electronics before bed causes you to take longer to enter the deep stages of sleep. Use these tools to improve your sleep efficiency and improve your health.


◉ Track your sleep stages
◉ Wake up naturally during the lightest sleep stage
◉ Dream log to keep track of your dreams
◉ Multiple alarms to wake up feeling refreshed to your favorite sounds
◉ Custom alarm window
◉ Analytics to dreams and sleep habits
◉ Stats to track sleep efficiency
◉ Apple Health compatible

Questions/comments regarding the app? Please email us at or visit us at

Hashtag: #everymomentcounts

Zen Labs Fitness is a proud supporter of the National Breast Cancer Coalition. We are passionate about finding a cure for breast cancer and proudly donate to their cause.

What’s New

Version 1.7

◎ optimized layout issues on the iPhone XS Max and XR
◎ iOS12 optimization

Our community is our number one priority. We answer each and every email. Most of our updates have been suggestions from our community. Questions? Comments? Suggestions? See why our community has made us the #1 5K training app.

Ratings and Reviews

4.5 out of 5
56 Ratings

56 Ratings

FitMama38 ,

Sleep App

I really like the app. Allowed me to see exactly how much sleep I was getting and ways to improve sleep.

Maggoe ,

Not loud enough

I really want to like this app. Whenever I use it I wake up so refreshed. It definitely wakes you up in the correct sleep cycle. That’s if you wake up though.

All of these third party clock apps either simply won’t work or the phone has to be just right in order for you to even hear the alarm. I ALWAYS have to have a backup because I simply do not HEAR this. It is unbelievably frustrating and starts the day off all sorts of wrong.

I’ll use it for another week consistently but if I find its the same issue Im changing my review to 1 star.

Eslaframboise ,

Great App

This app is great! If you have trouble sleeping or waking up groggy, this app is a great way to track what might be causing the issues and help you fix it! There's a really nice variety of alarms so you can find the perfect sound to wake up to or even add your own. It also doesn't have to be placed directly in your bed. It can be placed on the nightstand and will still collect data. Love using it!


Zen Labs LLC (CA)
55.1 MB
Health & Fitness

Requires iOS 8.0 or later. Compatible with iPhone and iPod touch.



Age Rating
Rated 4+
© Zen Labs Fitness


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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