For these mattresses, they may not be ideal due to stains. I don't think we could donate them like that? I do know that when Laurence and I were sleeping on the floor because we couldn't afford a bed, someone's old stained bed was a whole lot better than the floor. I'd rather see them go to someone who could use them than go in a landfill.
4 year old queen mattress - has a stain on it, comes with boxspring and frame - free
14 year old queen mattress - lots of stains, pretty worn. Comes with boxspring and frame - free
Cat tree - It's taller than me and has been well loved by my cats. Could be nice as an outdoor fixture for someone with outdoor cats - free