Originally Posted by Weezy Rider

It doesn't matter what weight quilt when it's cold. The bed is still cold when you get in. They used to make bed warmers in the days before central heating. After the bed is warm, it's whatever is comfortable. A bed warmer looked like a frying pan with a lid and a long handle. You put warm coals or ashes in it and set it in the bed for a bit.
Hot water bottles do the same thing.