My 16 month old DD is in a cot bed and has worn sleeping bags since she was born. Recently she keeps moving so much she is banging her head on the bars and ends of the cot. We bought her a bigger bag but she doesn’t seem more comfortable and is waking herself up 2-3 times a night. Just wondering if any else has this problem? My mum friends babies don’t seem to do this and are all in cot beds/sleeping bags