Best sound machine
We have slept with a sound machine in the bedroom ever since we lived next to a hideously ill-behaved family and their sad, ignored beagles. Both the humans and the beagles were noisy and disturbing at many points during each evening and night. When we moved to a new home after 1 year of neighboring with these people/animals we kept the sound machine in the room as we had grown used to the pleasant white noise.<br />Having purchased many different types and brands of sound machines over the last 15 years, I can say that the Marpac Sound Conditioner is by far the best one ever.  The sound it produces is like having a fan on in the room, without having the cold air chilling the room during freezing Michigan winters. The sound is not a recording like so many sound machines have.  Sometimes those white noise recordings have an annoying audible loop noise that can be really irritating.  Not so with the Marpac unit. It actually produces the white noise when you turn it on, and it is a lovely, soothing, relaxing white noise that cancels out any distracting or disturbing noises from the sleeping area. The Marpac 580A is fine for a average/smaller sized bedroom.  I would recommend the Marpac 980A 2 speed unit for master bedrooms and larger sized sleeping areas.
Rating: 5 stars