100% Cotton Made in USA Waterbase Technology made in USA CLINICALLY PROVEN TO REDUCE NECK PAIN: Mediflow's Water Pillow, the only pillow for neck pain relief backed by an independent Johns Hopkins study, provides significant reduction in neck pain and improves your sleep quality. FULLY ADJUSTABLE FOR ALL SLEEPING POSITIONS: Mediflow's adjustable pillow lets you control firmness and height for a personalized fit. The unique Waterbase design makes it the perfect bed pillow for side sleepers, back sleepers, and stomach sleepers. TWO-LAYER COMFORT & SUPPORT: Mediflow’s Water Pillow boasts a plush Fiber Fill top layer for cushioned comfort, and a responsive Waterbase bottom layer for personalized support. This design works together to alleviate neck pain and improve sleep quality. THE PREMIUM ORIGINAL WATER PILLOW: Mediflow, the original inventors of The Water Pillow, provide 25+ years of design advancements. Best for neck pain relief, superior comfort, support, and quality sleep. Experience our acclaimed, innovative water pillow. TRUSTED BY HEALTHCARE PROFESSIONALS: Choose Mediflow's adjustable pillow, the trusted name among Sleep Doctors, Chiropractors, and Physical Therapists worldwide. Our water pillow for neck pain is the recommended choice by healthcare professionals. YOU ARE UNIQUE: Mediflow’s Water Pillow is designed with your uniqueness in mind. It adapts to the shape of your head and neck, offering personalized comfort and effective relief from neck pain. FDA REGISTERED MEDICAL DEVICE: Mediflow's water pillow for sleeping is a registered medical device with the FDA. Designed to promote quality sleep, it plays a vital role in maintaining a healthy immune system.