I was offered this night when I already had in others who plan to ceiling, or turn over the bed ... but it is the only one that is intelligent and well thought! Initially, you can switch it on and gradually she will go to the baby sleep (light blinks on and off and the music too). Later, when the child is older, he may, in itself, initiate pilot by simply pressing the large round! You can also adjust the volume, which is rare on toys. And to top it all, it is cheap compared to other night lights! I just had a second child, and I'll buy another one again! FYI, I met two other moms who use and are very happy too.