The plan is for the new baby to sleep in a travel cot in our room. I am planning to buy a proper mattress for the travel cot. On the leaflet that came with the travel cot it says to ONLY EVER use the mattress supplied with the travel cot and NEVER use a different mattress.
Why?
The 'mattress' supplied with the travel cot isn't even a mattress. it's a foldy thin padded board.
Is there a safety issue that I'm missing?