- Hybrid
- 13.25 in thick
- Soft / Medium / Firm
Sleep Foundation: Best Mattress Overall Read review
That's the same size as a regular queen, so any standard queen mattress fits.
About the RV queen size →Forest River spec sheet, 2026.
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Sleep Foundation: Best Mattress Overall Read review
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The Flagstaff bedroom. Measure the platform, not the old mattress, before you buy.
| Year | Main bed | Bunks | Other beds | Source |
|---|---|---|---|---|
| 2026 | 60 × 80 in Queen | – | Second bed 72 × 80 in | 2026 Forest River Flagstaff Classic brochure |
| 2026 | 60 × 80 in Queen | – | – | Forest River spec sheet |
Years not listed weren't published.

Forest River's 2026 282RK floorplan.
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2026 | Flagstaff Classic F282RK | 28' 11" | – |
The main bed is 60 × 80 in (Forest River spec sheet, 2026).