From Peacock Alley, this bed topper features: For the ultimate sleep experience, try our mattress enhancer on top of your current mattress. Filled with the renewable, hypoallergenic Sorona® holofill This topper actually becomes loftier with each washing Finished with an added moisture-proof barrier for further protection. Luxurious 2-3" high box quilt design has a cotton sateen cover with a full elastic skirt of polyester that securely fits mattresses 14-18" deep.  Twin Down Alternative Mattress Bed Topper approx. 39" x 75"  Queen Down Alternative Mattress Bed Topper approx. 60" x 80" King Down Alternative Mattress Bed Topper approx. 78" x 80" Professionally launder, or machine wash cold in a large capacity or commercial washer. Dry on low heat. Imported.