The Sertapedic X-Firm Support King Pillow is expertly engineered for back and side sleepers who demand the highest level of support for a truly restorative night's sleep. Its premium 300 thread count, 100% cotton shell delivers a breathable, silky-smooth sleep surface that stays cool and comfortable all night long, while the elegantly printed 2 inch blue gusset adds a structured, three-dimensional profile that maintains full loft and prevents flattening under the weight of your head. A generous fill of high-quality polyester fibers provides extra firm, long-lasting support that bounces back to its original form night after night, making it the ideal choice for sleepers who need consistent head and neck alignment. And with its fully machine-washable construction, keeping your pillow fresh, clean, and performing at its best has never been easier — making it the perfect finishing touch for any king-size bed or luxurious bedding setup.