Enjoy the rich comfort and the soft feel of bamboo rayon sheets with Terrene™—part of the PureCare Elements™ sheet collection. Terrene sheets infuse bamboo rayon and luxury staple cotton in a premium sateen weave, offering a gentle and rich comfort. Terrene provides a natural antimicrobial sleep surface with the benefits of antibacterial silver ions that locate and deactivate bacteria on contact. Let the elements of the earth work for you while PureCare creates a healthier sleep environment each and every night. 400TC. Twin & Twin XL Sets Includes 1 Flat Sheet, 1 Fitted Sheet. 1 Standard Pillowcase. Full Includes 2 Standard Pillowcases. Queen Includes 2 Queen Pillowcases. King Includes 2 King Pillowcases. Fits Mattresses up to 18".