I, too, purchased this organic wool topper, because of overheating on the new man made mattresses with springs (and grandma age). *sigh* While I was waiting, I just used a cotton quilt on the bare mattress, and then a cotton fitted sheet over that, which actually worked fine and certainly more affordable! I kept this when it came in, but it's nothing special, overpriced.. FYI, linen fitted and flat sheets (over a cotton and/or wool topper), will further increase your "coolness"...stay away from man made fabrics.