I know that the recommendation is to get a new mattress for baby #2 to decrease chances of SIDS. I'm sure that many families just reuse their first one, though.
I've got DD #1 mattress that she used for years in the crib/toddler bed. Once she moved onto the bigger bed, I still used it for her on the floor in my room in case she wanted to be closer to me in the night. We had big issues with her jumping and playing on it, though, so I finally put it up. It has been through some wear and tear, but seems to still be in basically good shape.
Now DD #2 is 10 months and I've been putting her down in the crib with that same mattress. Since she is an older baby, I think it is probably ok. But I'm just wondering what other moms would do.
If the mattress was not new and had been really really used a lot, would you still use it as long as the baby was older?