Currently looking at three different types of Silver Cross mattress (and feeling like a terrible mother for considering the 'classic', as the cheapest option, rather than the 'premium' at double the price!) and also the Little Green Sheep one.
Some of these are dearer than the cot!
What's the norm? Do most people splurge on mattresses or am I falling for consumer advertising here and should I just be hitting middle of the range?
My little one is one so looking to get a few years out of this between cot / cotbed.
This thread is quite old now so some of the suggestions may be out of date, but if you’ve landed here looking for cot mattress recommendations, we’ve recently updated our best cot mattress page with lots of great options, as tried and tested by Mumsnet users. We hope you find it useful.

MNHQ