Tons of useful data about your sleep habits. I use it every night‼️‼️. You need an iWatch to ware each night.. The technology is remarkable.......i think.😴😴😴💤💤 It may not be medically certified but it does give you some indication of your sleep habits . I really enjoy using this App. I like knowing about my health & sleep is such a big part of your health. Reliable & very informative, thanks.

It takes a while to understand the data and graphics, but once you figure it out it is a fantastic tool to get a handle on your sleep patterns in great detail. Two months later i’m still learning about all of the features. I love this app especially in combination with Heart watch

Great app! Very good information, app is user friendly and data is easy to interpret too!

A terrific app, provides lots of useful data in a clean, easy to read format. Tech support is great, too.

App is the best so far I have experienced for a week and learning to use it. It has a lot of measurements , graphs, adjustable goals etc. I am still learning the various captures and time , value readings to correlate how I feel I have slept. And confirm such experiences. At this point, I am still learning it’s operation and readings. I have experience I have to turn of categories, reboot iPhone then turn on categories in order to have iPhone recieve data from I watch. It there a solution to keep app in constant connection with the iPhone and app? Kindly advise. Help instructions are very helpful though has to be improve as far as the sequencing of the steps. So novice user can use this app effectively and serve his purpose. More power to you design and needs a bit of tweaking to result it to be more user friendly. Very promising sleep application. Thank you.

Truly enjoy this app. It’s amazing and allows you to correlate good rest to better health outcomes like lower blood pressure etc. Certainly one of the best apps in my phone

I would give this app 5 stars but it’s a little glitchy. This may have something to do with watch connectivity, though. About once a week it fails to record respiration. About once every two or three months it fails to record anything at all. Other than that it is a really helpful tool for monitoring and improving your sleep. I wish there was a way to make notes each day about your activities (diet, exercise, etc) so you could better analyze the factors affecting your sleep.

Best yet for tracking sleep performance with a excellent, prompt and useable feedback!

I’ve needed something to get feedback and track my sleep. It’s more important to me now. I love the explanations and easy to understand layout.

I had a goal of understanding my sleep patterns. Always felt like I was not getting enough deep sleep. Long story short, this AP has given me a lot of helpful data. I have increased my deep sleep from under an hour a night to typically 3 hours, with my interventions to improve my sleep. Very nice to have hard data that my sleep patterns are better. To my surprise having the watch on my wrist while sleeping was easy. I really don’t notice it. I have my phone on do not disturb mode, so phone and watch do not disturb me at night.