Can't live without it!
I am a VERY light sleeper and I have owned this sound machine for years (actually the dual speed version).  My husband sometimes travels out of town and has realized how much he misses having it. I decided to order this single speed one and it is the same as using the dual version on the high setting. Both are wonderful, but if you want to save a little money, this one is just as effective.
Rating: 5 stars