The Serta Soft Top Mattress Protector delivers a cleaner and fresher sleep environment with an advanced odor-resistant mattress cover, made with 75% Bamboo and 25% Polyester Terry fabric. No more worries about spills or stains, thanks to the powerful 3M Scotchgard Stain Release that effortlessly releases stains from the fabric. Sleep in comfort knowing that our mattress protector offers breathable waterproof protection, keeping your mattress safe and dry. With an extra-wide elastic band, it provides a secure and snug fit on mattresses up to 18" deep, ensuring it stays in place night after night. Available in Twin, Twin XL, Full, Queen, King and California King sizes. Upgrade your bed to a sanctuary of clean comfort with the Serta Soft Top Mattress Protector. Size: cal king. Color: White.