Perfect

The reviewer that says the computer cant be put to sleep is wrong--you can actually create a timer in the app to put the computer to sleep after a certain amount of time or even at a specific time. So no need to worry about battery. Tons of useful features in this app such as slow volume raising alarms which is a much better way to wake up in the morning. Lots of high quality sounds that can be mixed together in cool ways. $5 is a bargain.

AWESOMO-2000 about White Noise