We love DS's too. The first few days were a disaster with it - the first morning he brought it into us to show us it wasn't glowing green yet , and the next morning he sat in his room shouting to us it wasn't glowing green yet and he was awake lol. But once he got the hang of it, it's been great. We got ours from Aldi about 2 months ago for about $30. The only morning he doesn't have to use it is the morning our garbage truck comes because he gets up at 5.30am to wait at the window for it There is no stopping him on that morning.