My daughter keeps losing her duvet at night and wakes up cold. What do you think is better - buying a double duvet (she has a single bed) and hoping when this shifts some of it stays on (or clip it on with clips - question about how effective these are is on other thread) or to get one of the much heavier laura ashley type bedspread/quilt things that make the bed look nice and hope this stays on (though I think this may make the bed feel very heavy). Any suggestions? Thanks very much