Unattached Waterbed Sheets: Complete Sets and Separate Waterbed Bottom Sheets.One of the most common complaints about waterbed sheets that are only pocketed on the corners is that the sides of the sheets tend to come up and expose the vinyl mattress. With California King "Fitted" sheets there is always plenty of sheet to reach the bottom of the mattress. The elastic band also keeps the sheets from "riding up". Once you try "California Fitted Style Waterbed Sheets" you'll never go back. The ultimate in linen luxury may be these extraordinary 300 Thread Count 100% Combed Cotton waterbed sheets that are sure to last for years to come. These sheets fit king wood frame waterbeds, they are not attached at the foot. 100 percent Combed cotton for natural softness. Durable, even after repeated washings, for long lasting quality and comfort. Royal Tradition 300 thread count California King sheet set 100% Combed Cotton 4" Hemming with Piping Elastic all around for perfect fit Machine washable California King 4PC set includes: One California king size flat sheet (108"x102"),One California king size fitted sheet (72"x84"), Two king pillowcases(20"x40").