We were concerned about our baby being cold at night (especially in the winter), so we bought a Halo SleepSack, since you're not supposed to put any blankets in the crib with them for the first year. This has to be one of the best things we bought for her! I slept much easier knowing that my daughter was nice and warm at night. We actually ended up buying two of these. One is a regular cotton one, and the other is thicker and warmer and made of fleece. She's not using one anymore, since it's getting warmer now, but I am seriously considering purchasing one or two in a larger size for next...read full review »