Custom size
- Hybrid
- 8 in thick
- cushion-firm
Sleep Foundation: Best Mattress for Pressure Relief Read review
Made to 28 × 76 inGet a quote
That isn't a standard mattress size, so order a custom size cut to your platform.
About the RV bunk size →Coachmen spec sheet, 2023.
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Sleep Foundation: Best Mattress for Pressure Relief Read review

Coachmen's 2023 20RB floorplan.
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2023 | Nova Ram Pro Master 3500 20RB | 20' 11" | – |
| 2024 | Nova 20RB | 20' 11" | – |
| 2025 | Nova 20RB | 20' 11" | – |
| 2026 | Nova 20RB | 20' 11" | – |
The main bed is 28 × 76 in (Coachmen spec sheet, 2023).