The King Serta 3" Cool Nights Gel Memory Foam Mattress Topper is a luxurious addition to your bed, providing a comfortable and cooling layer of gel memory foam. This modern and traditional style topper features a solid white color and a washable cover for easy maintenance. The cooling gel foam material ensures a refreshing night's sleep, while the Serta brand promises quality and reliability. With a size of King and dimensions of 78" in length and 74" in width, this mattress topper is perfect for enhancing your bedroom decor and improving your overall sleep experience.