he loves (he is crazy about water balloons). We told him each night he stays in his bed till the sun is up, he will find water balloons waiting outside his door. We don't fill them or anything. I always wake up at 6 and if he didn't come out even once, I leave 3-4 balloons. Seems crazy, but worked from day 1 of trying about 2 months ago. Crossing my fingers it has solved the issue for good and he is getting less and less amused by the balloons but still stays in.