Two-piece set for Twin size (consisting of a pillow sham, a duvet cover) Three-piece set for Full, Queen and King Size (consisting of two pillow shams, a duvet cover) Twin (Duvet cover : 67 x 87 inches; Pillow sham: 20 x 30 inches); Full (Duvet cover : 76 x 87 inches; Pillow sham: 20 x 30 inches); Queen (Duvet cover : 87 x 90 inches; Pillow sham: 20 x 30 inches); King (Duvet cover : 104 x 92 inches; Pillow sham: 20 x 32 inches); *We recommend duvet covers because they can be washed much more often than your quilted comforter. Too-frequent washing (even dry cleaning) can compromise your comforter's down fill. However, a cotton duvet cover can be laundered along with the sheets and pillowcases. This keeps the down comforter fresh as well. If you have ever priced dry cleaning for a fine comforter, you understand why cleaning it less often is a huge advantage! *Another advantage of cotton duvet covers is that they are changeable, so you can change the look and feel of your bedroom without having to completely redecorate. Browse our colorful duvet cover sets and bring excitement to your bedroom.