this be a must have ! First of all , it stay on for about 20 minute at a time and if any parent want they child to learn to go to bed on they own with out you rock they to sleep every night , this be the key . I put he in the crib and although he fuss for a few minute the movement and music slowly lull he to sleep . Second of all if 20 minute do not do it , you can use the remote control to start it back up so you baby do not hear you come back into the room . it be great and now he go to sleep on he own at night without it be a big ordeal . also , if we turn it on in the morning , right before he really wake up , he will stay in the crib fuss free for a extra 20 minute so I can get ready . it be great , you will love it !