The Sierra down alternative comforter features a synthetic fiber- Comforel®, a man-made hypoallergenic wonder that offers down-like warmth, loft and softness. The Sierra comforter is covered with a 300 TC 100% cotton and the baffle box construction will provide optimum lofting, even distribution and durability. Finally, you can enjoy a degree of comfort that imitates down in an easy-care comforter that is moderately priced, absolutely hypo-allergenic, and ideal even for allergy prone sleepers. Comforel® fill is uniquely engineered with miniscule spiral silky microfibers that emulate the glorious comfort of down, yet provide years of superb slumber. You'll go to bed feeling secure and wake up feeling refreshed.