15% Cotton, 85% Polyester Take the Throne – Regain precious hours of slumber and leave the aches and pains of bad sleep behind. Your twin bed mattress from NapQueen is a modern bed engineered for ergonomics and breezy airflow. Lie in Luxury – Wake up feeling like royalty. Snuggle into a silky-soft jacquard top and let your spine be perfectly cradled. Your medium plush mattress is great for side and stomach sleepers.