Sleep like a baby
I can't travel without this little gem.  I used to toss and turn and listen to every bump and creak when I slept at friend's houses or even hotels.  Especially hotels that have noisy a/c or heat systems that turn off and on all night and keep you up.  This machine creats a constant white noise level that is neither intrusive nor too light to mask other sounds.  I won't leave home without it.  I even take it RV camping with me!!
Rating: 4 stars