Top pick
- All-foam
- 6 in thick
- five comfort options
$385RV Bunk - 32x74 · list priceSee price
RV mattress sellers stock this exact size, or order a custom size cut to your platform.
About the RV bunk size →Forest River spec sheet, 2020.
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Sleep Foundation: Best Mattress for Pressure Relief Read review

Forest River's 2020 404QBWD floorplan.
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2020 | Sierra Destination 404QBWD | 42' 2" | – |
The main bed is 32 × 74 in (Forest River spec sheet, 2020).