Saatva mattresses come in standard U.S. sizes
Twin: 38'' x 75''
Twin XL: 38'' x 80''
Full: 54'' x 75''
Queen: 60'' x 80''
King: 76'' x 80''
Split King: 76'' x 80'' (two Twin XL)
Cal King: 72 x 84''
NOTE: Split Cal King is only available in the Saatva Classic 11.5" and Solaire mattresses. Split Cal King is two mattresses placed side by side, each measuring 36'' x 84''.
NOTE: Split King is two Twin XLs placed side by side.
For more help choosing the right mattress, see "What Mattress Size Is Right for Me?"