I do not use the mobile to sleep for the little (she would never sleep with tooting), but you can spend hours just lying in bed and staring at the animals and "talk" with them. They can as soon as the little ones begin to turn even the lion and the monkey at the side grip and palpate (punched structure). Practically also, that you can remove the characters and hang on the child seat. The music is not too loud or stressful (that one has already times in some cases), but it must be brought up again and again. Good entertainment value for children.