SnugFleece ORIGINAL 1.75 In. Wool Mattress Topper Pad Cover XL TWIN SIZE 39 x 80 Wool Made in USA Virgin Wool the thickest and most plush of all the SnugFleece models. 1.75 In. Wool Pile Height on this Wool Mattress Topper Cover Pad. Constructed with specialized one-of-a-kind equipment, one row of wool at a time, allowing recoil properties to remain intact. A powerful sleeping aid; helps to distribute your body weight evenly, relieving pressure on hips, shoulders and heals resulting in uninterrupted, better quality sleep. Keeps you warm in the winter and cool in the summer; a consistent body temperature keeps one from tossing and turning, resulting in a deeper more restful sleep. SnugFleece Orginal and SnugFleece II have a cotton backing; Dry clean, vacuum or foam wool cleaner to maintain freshness