I bought the king sized comforter for our bed.  My husband always put extra covers on his side while I was always hot. After putting this Casper down duvet on our bed, we found the perfect balance.  It seemed to do the trick for both of us.  He is warm with the comforter and I am not feeling too hot.  The bed is easy to make because the sewn in chambers keep their shape.  A really great product.