Quoting bloopbloop♥™:" It does the first one is 99$ and the second one is 180$. Crazy. So its okay if a newborn sleep on the ... [snip!] ... see that it has it in the first one the floor part moves up and down as you mention. I don't care for the changer much either."
yea that's how my son did it, he isn't one for sleeping flat on his back any more for some reason lol. But it's no different than his crib mattress. and like I said with ours the floor moves to 3 different levels just like his crib mattress. with the napper they will out grow it but I also guess that depends on how long you use it for. My issue with ours is I can't put it out in the open bc our cat will want to lay in.