$59.99 Attached Waterbed Sheet Set King/ Cal King Size Light Blue Solid with 18 Inch Deep Pocket, 1800 
Amazon.com: Adjustable California King Bed Sheets - 4PC Bed Sheet Set - 100% Egyptain Cotton 600 
Swift Home California King Microfiber 6-Piece Bed Sheet in the Bed Sheets department at Lowes.com
