With a real fan inside, SNOOZ is a portable white noise machine thatturns your bedroom into a haven for sleep.Inside SNOOZ's acoustic enclosure, a mechanical fan spins to generate peaceful white noise to help you fall asleep and stay asleep. If you like sleeping with the sound of a fan, you're going to love sleeping with SNOOZ. But unlike a fan, you can bringSNOOZ when you travel, it doesn't blow unwanted cold air in the winter, and it uses a fraction of the energy.