Queen mattress (10-inch memory foam) for $200 OBO (bought originally for $550). Used for a little over a year. There is some staining on the mattress. Has a cooling layer, comfort layer, transition layer, and support layer. Very supportive and comfortable! Can see full details at https://roomie.co/products/the-roomie-mattress

Also selling the bedding set and decorative pillows for cheap if interested!

Pick up on Stanford campus.