Our mattresses conform to industry standard sizes which are approximately: W x L x H.  Please see the respective product pages for more specifics.
Twin: 38” x 74” x 11” – 12.5″
Twin XL: 38” x 79” x 11” – 12.5″
Full: 54” x 75” x 11” – 12.5″
Queen: 60” x 80” x 11” – 12.5″
King: 76” x 80” x 11” – 12.5″
Cal-King: 72” x 84” x 11” – 12.5″