Clothing

So I’m always so confused on what to put my baby in to sleep. She likes to be swaddled but my swaddle sleep sack things are thin and I don’t think they keep her that warm. Tonight she has on a long sleeve onesie, forties pajamas and a swaddle sack and I feel she’s still cold. So then we switched to a fleece sleep swaddle sack that the hospital gave us and just putting her in her diaper (since it’s fleece didn’t want her getting to hot)....she seemed to like this the best but then is she to hot...?