So unfortunately I had to purchase this at full price for my son as amazon ruined my package during delivery. My son loves that it has a timer and he can have it on for 30, 60 or 90 minutes. He's even found a way for it to stay on all night. He also like all the different sounds. He chooses a different one each night. My son use to have trouble falling asleep but now with this he's able to fall asleep in about 5 minutes. I highly recommend this for everyone and anyone who has trouble sleeping.