Our favorite bedding basics in dorm-friendly, extra-long sizes. This gauzy Supersoft duvet cover strikes just the right balance of breathability and softness. The double-layer weaving technique creates pockets of air to hold warmth, creating irresistible coziness. Woven of organic cotton in serene ivory, the extra-long twin duvet gives dorm beds an airy, breezy look—especially when layered with other off-white bedding from our Supersoft collection.