New mattress for prams/cots

[Ducky1900]

I've just brought a second hand out and about nipper, I'm thinking that I should Replace the mattress in the carrycot?
I can't find one anywhere.

Also, I'm pregnant with baby number 2, and planning to use next to me and moses basket again, do I really need new mattresses? I brought these new and only my DS has used them.
Thanks!

My pram was different make but the carrycot fitted a normal Moses basket mattress in it, would that work?

I'd get a new mattress for the second hand pram, but the stuff only your DC has used I probably wouldn't bother, I could be wrong though!

You don't have to change mattresses between siblings if you don't want though it is advisable to.