When I was in the hospital after giving birth to my two week old, the nurses in the maternity wing got my little one addicted to a warm swaddle blanket, so in order to get him to sleep, I had to get one of these things (for significantly more $$). I have it in my room stocked with his blankets and turn it on when he wakes up for his middle of the night feedings. By the time he's full, his blanket is nice and warm and I can wrap him up and put him back in his bassinet and he's happy for 2 to 4 hours. Before I got the warmer, he wouldn't go to sleep at all for me. This thing is well worth the money.