My 20 month old is 99% for height and still has not really caught on how to use a blanket. He also overheats really easily. We were using the Halo cotton and muslim sleepsacks, but he's pretty much outgrown them. We inherited some woolino ones as hand me downs, which I know are supposed to be really nice, but he overheated really badly in them. Any suggestions for a sleepsack or wearable blanket that will fit a large 2 year old, and will provide some warmth for winter without being too heavy? I think there was a post on toddler sleepsacks a few months ago, but for some reason I can't find it now....