Luxury Mattress Protector Cover. This Soft Mattress Pad Fitted for Your Bed Adds Comfort. Mattress Pads Extend the Life of Your Bedding Linens, Saving You Money. A Good Mattress Topper Makes Your Bed Feel Soft. Sleep Better on Soft Mattress Covers. (King) Fill materials: 12 oz soft antimicrobial fiber fill for maximum freshness Pocket depth: 18 Thread ct: 330 Not Waterproof Machine washable