We recently upsized to a Queen for our guest room and are selling our very lightly used Simmons Do Not Disturb Tux full mattress with platform bed frame (don't know the name, we bought it on wayfair). This mattress was just used infrequently in our guest room always with a protector on. It probably still needs some breaking in! It's a fairly firm but comfortable mattress perfect for longevity (no sagging or weird lumps). No box spring needed as the frame supports it. Call, text, or email