Marpac SleepMate 980A White Noise Machine
Marpac SleepMate 980A Electro-Mechanical White Noise Sound Conditioner
The Marpac SleepMate 980A is a true white
noise generator; there are no digital sound recordings here! The cheap noise generating
machines have sounds that loop. The manufacturers try to hide this loop, but on a sleepless night, you
will hear it... and anticipate it... and listen for it... this has happened to me more times than I can count,
when I had a cheap sound machine. However, the Marpac is more like a constant rushing air sound that can
be adjusted according to the controls.
The difference between the High and low setting main power switch is the Fan Speed. High seems like it is about
double as fast as low. personal preference, as well as external sounds, will dictate which setting you will
There are two rings on the unit which control the tone and to some degree the volume of the white noise:
1. A Top Ring - You can adjust this ring to allow the anywhere from 3 to 8 holes to be exposed, thereby
affecting the sound level.
2. A Base Ring - Allowing a larger "opening" into the unit when adjusting this ring will create a lower
tone. Making the opening smaller will create a higher tone. Again, adjust the ring to your liking.
One of the most important things for a successful use of this sound therapy machine is
where you place it. Marpac recommends putting it away from you, such as on a dresser across the room. This seems to
make the sound bounce around the room and give you a fuller feel of the sound. For some, this won't generate a
lound enough sound, so if you wish, you could put it on the nightstand right next to you and enjoy a loud hissing
Product Dimensions: 5 3/4 x 3 1/4 inches; 1.6 lbs.