Blackout eye mask with soothing vibrations for better sleep Go beyond blackout with SleepMask. Our ultra-comfortable, 100% blackout eye mask features 3 quiet, soothing vibration patterns that are scientifically proven to help you fall asleep faster, stay asleep longer, get deeper sleep and wake up less throughout the night. The soft contoured padding around the eyes conforms to every face shape, while the non-slip strap ensures a secure fit and prevents hair from tangling, so you can sleep soundly in any position.