A solid duvet cover is the perfect way to express your individual style, dress up a bedroom and protect your down comforter from daily wear and tear. Even better, you can swap out duvet covers with the changing seasons, instantly giving your room a new look and feel.

When selecting a duvet cover, keep in mind that the duvet size must match the size of your down comforter. While sizes can vary slightly by manufacturer (and some even offer "oversized duvets" for those extra thick comforters), standard sizes are twin (68 x 88 inches), full/queen (88 x 88 inches) and king (104 x 88 inches).

BedBathStore.com offers a wide variety of style, size and color options from designers including Veratex, Daniadown, Wildcat Territory and Mystic Valley Trader. An elegant tone-on-tone stripe, like the Biltmore Red Stripe 3 Piece Duvet Set, or a bold color-on-color design like the Chocolate & White Hotel Spa Collection 6 Piece Duvet Set, will add instant style and sophistication to your bedroom.

For an extra touch of luxury in the bedroom, invest in a high thread count duvet cover. Thread count is a measurement of the number of threads woven together in a single inch. More threads in a smaller space mean a softer surface, so the higher the threat count, the softer the sheet or duvet cover. BedBathStore.com's 800, 1,000, 1,200 and 1,500 count Egyptian Cotton Duvet Sets are all supremely soft.

For easy coordination, browse the matching pillow shams, bedskirts, sheets and throw pillows. Or select one of the popular Bed in a Bag sets, such as the Veronica Hotel Collection Blue 11 Piece Bed in a Bag Duvet Cover Set. From a duvet cover in a rich, contemporary Jacquard design to 1,000 thread count ivory sheets and matching accent pillows, you'll get everything you need for the bedroom.