CPAP-PILLOW FEATURES & BENEFITS: • Works with all major brands and styles of masks. • Patented hollow areas alleviate mask pressure, improve comfort and help prevent mask leaks. • Dual cutout design accommodates the mask, allowing comfortable left or right side sleeping without compromising CPAP compliance. • Contoured shape supports your head and neck and aligns your spine the way nature intended. • High quality medical grade foam is cushiony, yet holds its shape to prevent edge collapse, maintaining the hollowed-out mask area. • Overall design and 4" thickness helps CPAP users attain a comfortable, restorative rest, night after night. • Made of high quality materials to sustain years of use. • 5 Year Warranty.