Ive made a few baby quilts with minkee backing and no batting. It is warm enough with it just like that. One of the mom's Ive given one to said she likes the minkee on the back, she puts it on her DD minkee side down to be warmer, or the cotton side down to feel a little cooler. Though I dont see why you couldnt use batting with it to be honest if you want it to be extra warm.