When she was BRAND new, a footed sleeper and a swaddle blanket . . . now at six weeks, usually just a onesie ( we co sleep, shes nice and warm) Although the other night she peed all over me, and I just stripped her down, changed her diaper and we slept the rest of the night skin on skin, which she really liked. Probably the best sleep we've gotten so far. Its pretty warm stoill here in fl. We werent at all cold.