My two year old daughter has the same problem. She will kick off covers and she doesn't like wear the body suits. Last year she was ok with a sleeping bag I bought from Winners. Now she grew out of and I bought a new one from the Bay. This sleeping bag has two holes at the bottom that allow her legs to stick out. It's so much fun to see her walking around in that sleeping bag. I bought size XL, good untill 36 months. For older kids, you need to put an extra layer, maybe another layer of PJ.