- Hybrid
- 13.25 in thick
- Soft / Medium / Firm
Sleep Foundation: Best Mattress Overall Read review
That's an RV king, 4 in narrower than a regular king (76 × 80 in). A regular king won't fit, so get an RV king in exactly 72 × 80 in.
About the RV king size →Jayco spec sheet, 2027.
We may earn a commission when you buy through some of these links. It doesn't change which mattresses we list.
Sleep Foundation: Best Mattress Overall Read review
Sleep Foundation: Best Mattress for Temperature Regulation Read review
Mattress Clarity: Best RV Mattress for Heavy People Read review
Sleep Foundation: Best Mattress for Side Sleepers Read review
Sleep Foundation: Best Mattress for Pressure Relief Read review

The Pinnacle bedroom. Measure the platform, not the old mattress, before you buy.
| Year | Main bed | Bunks | Other beds | Source |
|---|---|---|---|---|
| 2025 | 72 × 80 in King | – | – | Jayco floorplan drawing |
| 2026 | 72 × 80 in King | – | – | Jayco floorplan drawing |
| 2027 | 72 × 80 in | – | – | Owner report |
| 2027 | 72 × 80 in King | – | – | Jayco floorplan drawing |
| 2027 | 72 × 80 in King | – | – | Jayco spec sheet |
Years not listed weren't published.

Jayco's 2027 38SSWS floorplan.
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2025 | Pinnacle 38SSWS | 43' 1" | 4 |
| 2026 | Pinnacle 38SSWS | 43' 2" | 4 |
| 2027 | Pinnacle 38SSWS | 41' 7" | 4 |
The main bed is 72 × 80 in (Jayco spec sheet, 2027).