I have to put in my two cents for warm sleeping. I used to live in some really cold places in the Rocky Mountains, and this is what I worked out for warm sleeping in a cold room.
One: an electric mattress pad manually or set with a timer to warm the bed for an hour or two before bedtime, then off. Two: a wool blanket underneath top sheet.
Three: A goosedown comforter with a washable duvet over us. (It's like sleeping under a cloud :)
Four: a hot blooded sleeping partner. This bed is also easy to make in the morning, because you just shake the comforter and it falls to the bed. Easy peasy..
So for your quilt, you might consider making it the top of a duvet cover, and the bottom could be a simple sheet.