Mattress?

Does anyone have a gently use twin or full sized mattress that they want to get rid of? It's time to move MG out of the toddler bed (not sure what we were thinking, buying a toddler bed in the first place. It would've been smarter to skip that step and go straight to twin/full) and into a real bed, so that we can lay down with her and convince her to stay in said twin/full bed in the middle of the night when she's trying to come into our bed.

We were thinking about going up to Ikea today, but planning a trip of that magnitude at midnight the night before was a little too much for BJ, who prefers to plan his spontaneity.

I'm looking online, and finding various options. Any good recommendations for where to buy one, if no one has one to give/sell us?

BJ and I went out for V-day dinner last night, just the two of us, and we didn't talk about work or the kids! We talked about politics and current events and the kinds of things people talk about when they're out on a date, and it was marvelous. It's so nice to know that the people we each married are still inside of us, somewhere, just waiting for the opportunity to drop the Mommy and Daddy roles for a while. Sometimes, in between the time outs and the endless kids music and the Mickey Mouse and the naps and the baths, it's hard to remember that we weren't always parents, and that these kids didn't always consume our every waking minute.