All duvets are not created equally. The Natura Cotton-Filled Comforter proves this with features like an unbleached 100% cotton percale cover and 10 oz/yd^2 unbleached cotton fill. The Natura also sets itself apart by quilting the cotton fill to the cover thus eliminating the shifting, clumping and hollow spots that are so prevalent in other duvets. The cotton fill is naturally breathable and this duvet can be machine washed and dried.