I bought one yesterday and it's stiff. We slept with it on the bed last night and it felt like we were in a crapy hotel room. Of course it slid off all night too. The material seemed to be more of a slippery material though. Would it get softer if washed or should I just return it and look for something else. I was just looking for something lighter then the heavy down comforter we have on now. Any advice. Thanks!