2 twin matresses and 1 twin box spring and frame - $50 (Missoula)
One mattress is older but in good shape, but has been in the basement for about a year and may smell a little musty. $10The other one is sold with box spring, and frame as a set. $50. It's a good Sealy mattress from Costco, still firm and fairly clean (with a couple small ink stains on each side) - it has had a mattress cover on it for most of the time it has been used.