Support your head and neck with these down and feather fiber pillows from Serta. Each hypoallergenic pillow features a medium firmness, which is the perfect amount of support if you like to sleep on your side.  The pillows are filled with 75 percent white down fiber and 25 percent white feather fiber for added loft and comfort.   Guard yourself against allergies with these hypoallergenic pillows, which help you get a good nights sleep every night. Designed with double stitching, and the external 300 thread-count fabric is constructed from 100 percent cotton for added softness.   We recommend that this item is fluffed at least once a week to maintain even distribution.