Our mattress encasement is designed to fit any standard-sized mattress. The standard encasement has a 13-inch deep pocket and gusset reinforcements. The kids encasement has a 10” deep pocket and gusset. reinforcements.The encasement features a classic knife-edge trim on all sides, ensuring a snug fit that won't budge or shift. We've carefully designed our encasement to cater to a variety of mattress types and sizes, making it the perfect fit for any bed in need of protection.