King 20" x 36" * Sleep Cooler, Sleep Better with Feel Cooler® * This cooling pillow is made with Temperature Regulating technology, and was created with the goal of providing better sleep to its users. * Cooling Pillow that will help you sleep cool * 30 Day Return Guarantee. Try it - If you don"t like it return it within the 30 days and get a refund for the purchase price minus actual shipping costs.