From SP Soft:
Now, with background music playing function and time setting!#1 Health&Care App in Belgium, Czech, France, Hong Kong, Israel, Luxembourg, Macau, Malaysia, Netherlands, New Zealand, Poland, Russia, Singapore, Taiwan, etc.Deep Sleep is a simple but great tool to help me have a better and deep sleep in the beautiful music with -wave and -wave. There are 7 different long time music tracks in this version. A better and deeper sleep will help me become more powerful and full of strength next day or just when you wake up from a short nap. It's very easy to use this tool. Just launch the app and press start. Then close your eyes and enjoy.You can also purchase the pro functions like "counting sheep", "counting star" and time setting.