I bought one of these a year ago on Amazon, they rock! Just be aware there is/was a recall concerning the power adapters: http://www.asticorp.com/recall/
I bought one of these a few years ago from Amazon. My wife and I love it! The sound of a fan is great for helping us get to sleep. There are several variations and intensities of this sound. One of them is almost certain to work for you.
I own 2 of these, they are awesome.
If you’re hesitating on buying, just get one. I work nights, and this drowns out all the noise in my house as I try to sleep during the day.
Why not just buy a fan?
Some people don’t like breezes. And this fits in the suitcase easier. 