If your child is sweating in a 7AM foot muff, perhaps consider removing any jackets, sweaters and long sleeve shirts layered beneath the bunting. Our premium poly insulated filling will do just the trick to keep your baby warm despite the cold weather so do not worry about over layering to stay warm! Depending on which product you have purchased, you can also unzip down the middle to release the heat (this works for the Blanket 212 evolution and Car Seat Cocoon) or unzip the product back panel and only use the front panel - this will cover your baby and not wrap them up (this works for all Le Sac Igloo and PODs).