Graco Lauren Crib question

nerdbaby

The nursery/gear board is not working for me so I figured I'd try here, hoping some/most of you have your cribs...

This is probably a dumb question but Target's customer service knowledge is abysmal.  I like this crib...

http://www.target.com/p/Graco-Lauren-Classic-Convertible-Crib-Natural/-/A-11276504#?lnk=sc_qi_detaillink

It says it requires a full mattress.  Is this really a regular full bed mattress or is there such a thing as a crib-specific full mattress?  I know there are petite size cribs, so I thought maybe a crib-specific full is not such a ludicrous idea.