My DS (11 months) always goes to sleep with his Ewan the Sheep, since he was about 5 months old. It's on the harp music setting with the red light on. I put him in the his sleeping bag and switch on Ewan and he falls asleep himself, at naps and night time. I was never sure how much he actually needed it, until he went to the childminder yesterday and it had run out of batteries, and he wouldn't go to sleep! Am I creating a problem for the future? Surely he'll grow out of it at some point? I know it doesn't really matter, but it's just if we go somewhere and forget it for example. At the moment I even take it if we're going in the car or buggy at nap times.