Can't sleep without it!
My husband and I have always needed that background noise to sleep.  Usually a fan, however we were tired of the constant air blowing when it wasn't needed.  I researched many products before deciding on this.  We loved it so much, I ended up purchasing 3 for my son and daughter n law. One for their newborn, 2-year old and them.  Super product. Only 1 speed, but don't seem to need another one. There is no timer. But, we prefer it on all night.
Rating: 5 stars