DS has refused to be wrapped or be under a blanket from day dot so the sleeping bag was amazing, couldn't recommend them highly enough, I dress DS in his usual pjs and I have a couple of sleeping bags depending on the weather one is very thick and warm and the other is quite thin, DS also has a heater on in his room a few hours before bedtime to heat it up, we've never had any issues with him waking up being to hot or to cold and there is no way he can kick the sleeping bag off like he would do with blankets