Take all sheets, pillows and other coverings off the bed.
Inspect the mattress where it meets the pillow top for a zipper. If equipped with a zipper, unzip the pillow top. Wash and dry it according to the manufacturer's care instructions.
Use a stitch puller to remove stitches attaching the pillow top to the mattress if no zipper exists. Go around the entire mattress, pulling out each stitch to completely remove the pillow top.
Roll up the pillow top after removing the stitching and dispose of accordingly.