Offering 233 thread count 55-percent Tencel, 45-percent cotton cover and 95-percent feather, 5-percent down fill wrapped around in 60-percent Tencel, 40-percent polyester for the comfort by Martha Stewart. This pair of luxurious pillows offers both comfort and longevity. Perfect for back sleepers, these medium-firm pillows deliver the necessary softness for a good night's sleep. Dimensions: Down- and feather-filled products are packaged tightly during shipping. Upon receipt, remove this item from its packaging, fluff gently, and allow several hours for full loft recovery. In addition, products sealed in plastic packaging sometimes have a disagreeable scent because of concentrated natural fibers. A few hours of airing typically removes any odor. We recommend that this item is fluffed at least once a week to maintain down distribution.