Cant sleep without it! Most sound options

This is the best sleep out there. It allows me to mix and match my favorite sounds to help me fall sleep and stay asleep. And there are so many different sounds to choose from, many more than other apps have. Its easy to use and even has a timer and alarm. I prefer to keep the sounds running all night but you can set to fade out. If you use earphones there are so cool ambient sounds (heartbeat). Highly recommend this. And if you run across any questions and contact SM, you get an immediate reply!

4lablover about Sleep Machine, v4.1