I bought a Queen mattress at Big Lots with my 20% coupon- first new mattress since we married 16 1/2 years ago. It is so high up (and it was not even their top mode) that we feel like we need an elevator to get up there. Our bed is already high as it is an antique brass bed, but now it causes you to get nosebleeds!
I didn't think I would be able to get my son off of it. Of course the one we wanted was out of stock so we spent $100 more (actually $80 more with the discount).
I think we saved about $76 on the mattress alone.