- Hybrid
- 13.25 in thick
- Soft / Medium / Firm
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That's an RV king, 6 in narrower than a regular king (76 × 80 in). A regular king won't fit, so get an RV king in exactly 70 × 80 in.
About the RV king size →Keystone spec page, 2027.
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The Cougar bedroom. Measure the platform, not the old mattress, before you buy.
| Year | Main bed | Bunks | Other beds | Source |
|---|---|---|---|---|
| 2026 | 70 × 80 in King | – | – | Dealer report |
| 2027 | 70 × 80 in King | – | – | Keystone spec page |
Years not listed weren't published.

Keystone's 2027 29RLP floorplan.
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2025 | Cougar Half-Ton 29RLP | 33 ft 7 in | 6 |
| 2026 | Cougar Half-Ton 29RLP | 33 ft 7 in | 6 |
| 2027 | Cougar Half-Ton 29RLP | 33 ft 9 in | 6 |
The main bed is 70 × 80 in (Keystone spec page, 2027).