Here are the sizes of the mattresses and then the size of the quilts (for me it is the 'about' size as I just go by the size of my blocks and then add borders to however long I want the sides to drop).
Crib 27 X 52 inches 45 X 60
Twin 39 X 75 inches 71 X91
Double 54 X 75 inches 86 X 91
Queen 60 X 80 inches 92 X 96
King 76 X 80 inches 108 X 96
Then we have a 'California King' size, but I'm not sure what the dimensions are on that one.