I found the tutorial for the nap mat on Jenny Garland's Blog. It's an easy sew. I did do velco instead of bottons though.
I like how it rolls up really easily. and she uses velco on one side so the mat comes out to clean, or if you decide to make 2 you don't have to rebuy the foam.
Serena looooves it. I used fleece instead of minky, because it was on sale :)
We're happy with how it turned out, It only took about 2 hours from start to finish if that. My dad is visiting from PA, and then my aunt and uncle came out from Arkansas, and with soccer on Saturday morning I literally had a short window of time to get it together!