CRIB MATTRESS InactiveAvailable: Serta crib mattress in fantastic condition, although it is 6 years old. It was well-maintained and is free of stains. (Item #221635) Posted: Aug 05, 2012 11:51 AM City: New Brighton County: RAMSEY By: Carly McEathron - Phone: email: carly.mceathron@gmail.com Tell a friend about this listing. Click here to have Free Market staff review this listing.