Overall great product. Cotton inner is really comfortable. I used to hate the polyester inside typical bags.
I love this so much I just purchased another one as a gift for my sister who just had a baby.
I love that we can use it as two separate bags.
Also, I use this in my guest room with the Soto Sleeping pad for guests and then just unzip and use as a separate comforter.
It gets a bit hot for me when we use it with our two children. But I always run a bit hotter than my wife. Other than that, great product.