Mattress and Sheet Size Guide:

 Size Measurement
Twin 38"W x 74"L
Twin XL 38"W x 80"L
Split Cal King 36"W x 84"L
Full 54"W x 74"L
Queen 60"W x 80"L
King 76"W x 80"L
Cal King 72"W x 84"L

*** Split Top King & Split Top Cal King have the same measurements as the regular mattress, but the top 1/3 is split so that your head can move independently of the head next to you on an adjustable base. ***

Adjustable Base Size Guide:

 Size Measurement
Twin 38"W x 74"L
Twin XL 38"W x 80"L
Split Cal King 36"W x 84"L
Full 54"W x 74"L
Queen 60"W x 80"L
1pc. King 76"W x 80"L
2 pc. King Set (2 Twin XL) 76"W x 80"L
1 pc. Cal King 72"W x 84"L
2 pc. Cal King Set (2 Cal King XL) 72"W x 84"L