Custom size
- Memory foam
- 8 in thick
- not stated
Made to 50 × 79 inGet a quote
That isn't a standard mattress size, so order a custom size cut to your platform.
Winnebago floorplan drawing, 2027.
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Some bunks have a rounded corner, so trace yours before a custom cut. A thicker bunk mattress takes headroom from the bunk above.

The Navion bedroom. Measure the platform, not the old mattress, before you buy.
| Year | Main bed | Bunks | Other beds | Source |
|---|---|---|---|---|
| 2020 | 50 × 79 in | – | Cab over 49 × 75 in | Winnebago 2020 Navion preview sheet |
| 2021 | 50 × 79 in | – | Cab over 49 × 75 in | Winnebago 2021 Navion digital brochure |
| 2021 | 50 × 79 in | 49 × 75 in | – | Winnebago spec sheet |
| 2022 | 50 × 79 in | – | Cab over 49 × 75 in | Winnebago 2022 Navion digital brochure |
| 2022 | 50 × 79 in | 49 × 75 in | – | Winnebago spec sheet |
| 2023 | 50 × 79 in | – | Cab over 49 × 75 in | Winnebago floorplan page |
| 2024 | 50 × 79 in | – | Cab over 49 × 75 in | Winnebago floorplan page |
| 2025 | 50 × 79 in | – | Cab over 49 × 75 in | Winnebago floorplan drawing |
| 2026 | 50 × 79 in | – | Cab over 49 × 75 in | Winnebago floorplan drawing |
| 2027 | 50 × 79 in | – | Cab over 49 × 75 in | Winnebago floorplan drawing |
Years not listed weren't published.

Winnebago's 2026 24J floorplan.
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2020 | Navion 24J | 25'6" | 4 |
| 2021 | Navion 24J | 25'6" | 4 |
| 2022 | Navion 24J | 25'6" | 4 |
| 2023 | Navion 24J | 25'6" | 4 |
| 2024 | Navion 24J | 25'6" | 4 |
| 2025 | Navion 24J | 25'6" | 4 |
| 2026 | Navion 24J | 25'6" | 4 |
The main bed is 50 × 79 in (Winnebago floorplan drawing, 2027).
49 × 75 in (Winnebago spec sheet, 2022).