My son is 17 months and about 25 lbs. We have a Graco PNP and will be going on a week long vacation this summer with hopes that he will sleep in the PNP but I think the mattress that it came with is too hard for him now that he's older and weighs more. I want him to sleep comfortably while we are on vacation. Has anyone tried the mattresses that fit the PNP that are a little thicker?
I'm thinking of one like this: