Our Split King size sheet sets consist of the following: 2 x Twin XL Fitted Sheets, 1 x King Flat Sheet and 2 x King Pillowcases.
We currently only have this sheet set available in our 1500 Series and our Luxury Bamboo lines, which can be found using the links below.
1500 Series: https://www.cosyhousecollection.com/products/1500-series-bed-sheets-split-king-size
Luxury Bamboo: https://www.cosyhousecollection.com/products/luxury-bamboo-bed-sheets-split-king-size
Hope this helps!