Rest comfortably on our Akordeon anti-odor pillows' plush fiber fill, which is made of hypoallergenic polyester fiber and has a cover made entirely of cotton for an extra layer of silky softness. Every pillow has Ultra-Fresh, odor-repelling technology that is also antibacterial, antimicrobial, and helps keep your sleeping environment fresh and tidy throughout the night. For all types of sleep, the medium support's head-cradling support is perfect.