Split Head Mattress Protector, King, Adjustable Split-King Size, 100% Terry Split head DIMENSIONS: Split Top King MATTRESS PROTECTOR Includes: ONE Split Top Fitted Sheet STYLE mattress protector 78" wide X 80" long+ 18 DEEP (34" Split from the Top) Mattress protector FEATURES: Fully Elasticized Fitted Sheet style with terry cortton surface ,noiseless, Fits Mattresses 18" Deep with Elastic all around on Each Corner for Better Support, 100% Waterproof FOR ADJUSTABLE KING BEDS: These Top Split (Head Split) mattress protector Perfect for Split-Top Adjustable Mattresses or Flex-top Mattresses. PLEASE EMAIL THE LENGTH OF THE SPLIT ;- If you do not email the length of the split, we will cut yours at 34"long. This is the most commonly ordered split length.Because of the way our splits are made, a 34"long split will fit a mattress with a split just a couple of inches shorter or a split that is just a couple of inches longer. Keep in mind that a ?split head? or ?split top mattress? should never be confused with a ?split mattress?, split head or split top mattresses are ONLY split at the top or head of the mattress between 34 inches down from the top.