our house is not very well insulated and we have a drafty bedroom. DD sleeps in a crib for most of the night and I worry about her getting cold. I have been layering her with two sleepers at night, and it seems to do the trick, but I have been looking at sleep sacks. The problem is, she hates being confined and I worry about buying one and her refusing to wear it. I am looking for alternatives. She absolutely refuses to have a blanket on her, she screams bloody murder if I try to put one on her. Is there some kind of radiant heat thing I can put in her crib that is safe, or should I just keep layering her at night???