iPhone Screenshots


Wake up gently, track and improve your sleep. Feel refreshed and rejuvenated every morning!

Tired of being jarred awake? Wake up to over 750 high-quality natural sounds from around the world. Create your own perfect wake-up sequences of 6 different natural sounds. You could begin with soothing rain, progress to ocean waves and morning bird calls, and, if those don't work, be roused by Japanese drums and rolling church bells.

With over 750 sounds and fully programmable play times, you have virtually endless possibilities to customize your wake-up experience. You’ll start your day well-rested and full of energy.

Want to get 7, 8 or more hours of sleep every night? Sleep Science tracks your sleep each night and helps you achieve your personal sleep goal.

Want to understand your sleep over time? Sleep Science provides meaningful graphs over weeks, months and years so you can see how your sleep improves.

Want to learn what affects your sleep? Sleep Science lets you record notes about changes in bed-time routine, exercise, stress, and more. You can even put notes on your sleep graphs.

Not sure what wakes you up? Sleep Science records the loudest sound during the night so you can find out.

Do you forget your dreams? Sleep Science lets you record dreams during the night or when you wake up. You can review them weeks, months or years later.

From the creators of popular Rain Sounds HQ, White Noise HQ and Sleep Sounds HQ sleep sound apps, we’ve packed all this capability into a simple and beautiful app that works!

Sleep Science HQ features:
• Over 750 high-quality, natural wake-up sounds recorded on location around the world.
• Customizable wake-up sequences of up to 6 different sounds, with play time, strobe and vibration options.
• Graphs that show your sleep and wake activity during the night.
• Log and graphs of your actual sleep time vs your personal sleep goal.
• Daily notes for recording dreams and changes to daily and bedtime routines.
• Sleep graphs over weeks/months/years that show sleep statistics, trends and notes.
• Gentle wake up during light sleep, 0-30min before your alarm time.
• Captures the loudest sound during the night.
• 22 sound categories, including: Rain, Ocean, Rivers & Streams, Crickets, Wind Chimes, Lakes, Wind, Water Fountains, Fire, Birds, Animals, Cars, Trains & Planes, Public Places, Household, Bells, Industrial, Soundscapes, Drums and more...
• Modern easy-to-use interface, optimized for nighttime and wake up.

Download Sleep Science HQ now.

What’s New

Version 2.3

• Bug fixes and performance improvements.
• Sleep log entries can be deleted.

Ratings and Reviews

4.5 out of 5
47 Ratings

47 Ratings

BuckeyeDave93 ,

A good app, but...

This app does most everything you’d want from a standard monitoring app, it monitors and documents the nightly cycles. The graphics are cool. It needs the option to use music from your music library to wake up to. The big thing it doesn’t do, which is why it isn’t my main sleep app, is it does not work with Apple Health. Not sure why this wasn’t included, but is needed!

tylo_la ,


Recent changes to the app are improvements. But there's still more to do.
- Why is there no option to start the alarm with vibration and no sound? Isn't that the point of offering a vibrate option?
- The graphs are OK. As I have suggested directly to the developers, it is possible to roll much of the information in the graphs into one graph. The most useful thing to me would be to see a graph with a floating baseline so I could instantly see my bed times and wake-up times, length of sleep and quality of sleep in one graph. A sleep app I used previously had this until the developers "improved" it and removed this most useful graph.
- Make the font sizes bigger and bolder. Some of us are old. I'm not breaking out my reading glasses to read my sleep data.
- I've used other sleep apps that showed I don't always have the same sleep pattern. With this one, it's always pretty much the same. I think your algorithm could be improved.
- Your data shows that I'm awake far more than my body tells me I am. With other sleep apps, I've regularly had efficiency in the 90s, but sometimes lower. With this app, I'm pretty much always in the high 70s.
- I think a hard-edge color graph would be more useful. Supposedly, the peaks are when the app thinks I'm awake, but there's no line or color marker that indicates awake.

Developer Response ,

It's possible! Set your alarm time, switch vibration on, and slide the volume slider to the left. Alarm volume is independent of the current system volume. Or you can create a custom wake-up sequence with only vibration and no sound. Awake is shown at the top of the graphs in orange, blue at the bottom indicates sleep. Please contact us and we'd be glad to help further.

Spudy Bug ,

A little difficult

To navigate. Wish it had a repeat. I like the wake up sounds a lot. That’s why I chose it. I like waking up slowly to quietly rising natural sounds. So I’ll use it for awhile.

Developer Response ,

Glad you like the wake up sounds! The app always remembers your last alarm time and wake-up settings, just tap Set Alarm. Please contact us via Questions or Feedback in the app, we’d be glad to help with other questions.


Phase4 Mobile, Inc.
118.7 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Dutch, French, German, Italian, Japanese, Portuguese, Russian, Simplified Chinese, Spanish, Swedish

Age Rating
Rated 4+
Copyright © 2019 Phase4 Mobile, Inc.


  • Family Sharing

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

More By This Developer

You May Also Like