This app in connection with the Up 3 band is the absolute best for getting the most restful sleep of your life! It has a smart alarm the quietly vibrates you awake (so it won't wake up your partner) in the lightest part of your sleep cycle, so you always wake up feeling energized! I have used the apps sleep information to figure out how much of a difference blue light blocking glasses and a sleep mask make for me as well as how cool my room needs to be for my best sleep ever. I also love the heathy fitness reminders and challenging friends to make sure we hit 10k steps a day. Thanks Jawbone! Worth it!