what type of mattress is best for cot bed? I'm thinking of getting spring mattress rather than foam as it's for a cot bed so would like it to last.
also would I need to buy a new one again if we had another child?
budget not an issue as I'd really just like to get a "good" one that'll last, but is if worth splashing out on or is basic spring just fine?
too many options!!! 