We try to consistently use the name SleepMate when referring to this model. You will sometimes see the name SoundScreen used for the same machine. The SleepMate and SoundScreen are the same machine. The SoundScreen name is used to market to office environments where the primary interest is masking conversations in the next cubicle. The SleepMate name is used to market the product to people looking for help sleeping. Other that the label, the two machines are identical. Return to the white noise machines home page.