The room the baby is in is at least 5 degrees colder than the rest of our house, and we were struggling to keep her warm enough at night (which for us, also meant more night wakings). i was looking for a warm SleepSack with sleeves - there aren’t many out there, and I was so relieved to find this one! It’s soft, feels substantial enough but light, and even has built in mittens on the sleeves to cover baby’s hands. The baby settled right into it- and when the zipper broke on the one we originall...