Hi   I have two crib mattresses for sale that were used for 3 1/2 years.  They are both Serta Perfect Dream mattresses.  They are in great shape and perfectly clean since I always used waterproof mattress pads.   Retail price is $99/each.  Selling for $25 a piece.  Smoke free home, but we do have two dogs.  They were never on these mattresses and hardly ever went into the babies room.  Please let me know if you are interested. Best Regards,   Becky