I use ALL of my quilts on the beds and wash them as frequently as necessary. I make a King size quilt for a Queen size bed. I usually measure the bed down beyond the edge of the bed where you want the quilt to hang and see how much more in inches you will need to make the quilt match that measurement. you may need to add a block to each row of a king size quilt or just add an extra border or two. it just depends on how you want to add the inches to your quilt.