OEM RV Mattresses are notoriously uncomfortable, especially after some use. The springs soon poke through and stick into your body. A new deluxe mattress would be ideal but expensive. A cheaper solution is a memory foam topper. Since we added ours the RV bed is much more comfy now. Another tip is when the topper gets old and needs replacement don’t throw it out, use it under the mattress for a little more insulation for those cold nights.