What is the difference between the microfleece version and the cotton version of the Magic Sleepsuit?

Both versions have the same jersey cotton inner layer and the same layer of polyfil. The only difference is the outer layer - microfleece in one and jersey cotton in the other. By nature of the fabric, microfleece is a bit more cozy and puffy, and cotton a bit more breathable and flexible. Both versions should be used in rooms at an appropriate temperature for a baby.  We offer both versions to give our customers a choice based on their fabric preference. Please keep in mind that the cotton version will be more likely to shrink with laundering.