I have a hemp thing, it's about 14X14, and seems to have the same amount of layers as a M/L NightyNewt. Would this be a Large NightyNewt (on the site it says they are 15X15) or a Salamander Soaker? Right now we use M/L NightyNewts to stuff his pocket fitteds at night but I wanted something a bit smaller because when he wakes up in the morning the diaper isn't completely wet, so I figure he can do with a *bit* less. Oh, and the 14X14 thing we have is serged in rainbow if that makes any difference....