Custom size
- Hybrid
- 8 in thick
- cushion-firm
Sleep Foundation: Best Mattress for Pressure Relief Read review
Made to 70 × 75 inGet a quote
That isn't a standard mattress size, so order a custom size cut to your platform.
Coachmen spec sheet, 2022.
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Sleep Foundation: Best Mattress for Pressure Relief Read review

Coachmen's 2022 339DS floorplan.
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2022 | Sportscoach SRS 339DS | 36' 3" | – |
| 2024 | Sportscoach SRS 339DS | 36 ft 3 in | 5 |
The main bed is 70 × 75 in (Coachmen spec sheet, 2022).