Set of two for less than the retail cost of one!- used one time The premium high-density memory foam pillow adapts to your unique shape, absorbing movement and providing consistent support. Finally, enjoy the deep, uninterrupted REM sleep your body craves Includes A removable Cooling Pillowcase Every Derila Ergo Pillow already comes with a breathable, cooling pillowcase included for a fresher and more comfortable night’s rest. Don’t let overheating ruin your rest. The Derila cervical pillow features a breathable, temperature-regulating, removable, machine-washable zip-off cover that encourages airflow. It stays cool to the touch, ensuring you stay comfortable from the moment you lie down until your alarm goes off Proper head elevation is key to a quieter, more peaceful bedroom. By gently lifting the head and supporting the neck at the ideal angle, our butterfly pillow design helps keep your airways more open and clear. It’s the subtle adjustment needed for a more harmonious night for both you and your partner Worried About Harsh Chemicals or Odours? | Sleep with total peace of mind. Our ergo pillow is CertiPUR-US and OEKO-TEX certified, meaning it is tested to be free from harmful substances. You get a high-quality, non-toxic, and durable neck support pillow that is safe for the whole family.