Sleep Like Royalty 👑—Upgrade Your Comfort Game! Designed to fit snugly on any king size mattress, ensuring no slipping or sliding. Machine washable for easy maintenance—because your time is valuable. Experience the ultimate in comfort with our extra thick mattress topper. Stay cool and comfortable all night long with our innovative breathable fabric. Enjoy the plush feel of down without the allergens—perfect for sensitive sleepers. Extra Thick Support Breathable Design King Size Comfort The Upgraded Extra Thick Mattress Topper by Bed-in-a-Bag features a 100% cotton cover and is designed for king size beds. With its breathable and flexible design, this down alternative topper provides optimum cushioning and support, ensuring a restful night's sleep. It's also machine washable for hassle-free care.