Here's a chart from:
http://www.marianneElizabeth.com and printed in Quilter's Home.
Standard MATTRESS size Width x length
Crib 28 x 52
Twin 39 x 75
Long Twin (Dorm size)? 39 x 80
Super Single 48 x 84
Full Double 54 x 75
Double XL 54 x 80
Queen 60 x 80
** OK, looked on the site and didn't find it, but I had saved this from the magazine.
Calif. Queen 60 x 84
King (Eastern) 76-78 x 80
King (Calif or West.) 72 x 84