Crocheting makes it slightly bulkier than knitting. With crocheting, you are twisting and catching one piece of yarn with one needle. Crocheted soakers are supposed to be good for nighttime for that reason, or also for heavy wetters.
I don't know how bulky hers are IRL. I think Shandelle is the only one of us who has one, maybe she can describe it better?
Anna
Mama to Gracie (Sept '03)
and a BOY! (coming July '05)