I absolutely love tracking my sleep. Biostrap is often coming up with app updates with new features. This company is trying to do great and it shows. I have so much hope for Biostrap because it is like a little piece of Heaven when I go to the App Store to check for updates being that Biostrap has exceeded the expectation. Good Job! This trackers does it all. It hard to make the best activity tracker and sleep tracker. Biostrap has done it. Join the future of super athletes with Biostrap to go further then the greatest of the 1900’s Thanks Biostrap. God Bless!