My dear deceased MIL made my DH and me a King sized 100% polyester quilt for our wedding present. We jokingly asked her if she didn't want grand children because the quilt was so heavy that once you got under it you were trapped in that spot. The thing weighed a ton. She laughed and laughed.
PS after lots and lots of washing over 35 years, the thing still weighs a ton but has hardly faded at all!