First post here so please be gentle...
We're staying with ILs during the Christmas break with DD (4 months). There will be a cot bed there, with a mattress previously used by DD's cousins (now 8 and 5).
I would like DD to have a new mattress due to the risks associated with used ones... But we're only there for a few days.
Am I being difficult? We will be staying visiting regularly going forward so worth the investment in my view.