Great all around
RVMattress.comSignature Hybrid
- Hybrid
- 13.25 in thick
- Soft / Medium / Firm
Sleep Foundation: Best Mattress Overall Read review
$1,865RV King - 72x80 · list priceSee price
Holiday Rambler Endeavor 38W mattress size
Main bed72 × 80 inRV king
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 →Holiday Rambler spec page, 2026.
Mattresses in 72 × 80 in
We may earn a commission when you buy through some of these links. It doesn't change which mattresses we list.
Best value
RVMattress.comCopperFlex Essential
- All-foam
- 6 in thick
- five comfort options
$799RV King - 72x80 · list priceSee price
Firm
RVMattress.comPlank Firm
- All-foam
- 10 in thick
- Firm / Extra Firm
Mattress Clarity: Best RV Mattress for Heavy People Read review
$1,532RV King - 72x80 · list priceSee price
Cooling
RVMattress.comAurora Luxe Cooling
- Hybrid
- 13.25 in thick
- Soft / Medium / Firm
Sleep Foundation: Best Mattress for Temperature Regulation Read review
$2,465RV King - 72x80 · list priceSee price
Heavy duty
RVMattress.comTitan Plus Luxe
- Hybrid
- 13 in thick
- Plush
$1,865RV King - 72x80 · list priceSee price
Helix pick
HelixHelix Midnight
- Hybrid
- 11.5 in thick
- Medium Feel
Sleep Foundation: Best Mattress for Side Sleepers Read review
$1,489RV King · list priceSee price
RV hybrid
RVMattress.comCopperFlex RV Hybrid
- Hybrid
- 10 in thick
- Medium-Firm
$1,065RV King 72x80 · list priceSee price
Custom size
Mattress InsiderLuxury Gel Memory Foam
- Memory foam
- 8 in thick
- not stated
Made to 72 × 80 inGet a quote
Bed sizes by year
| Year | Main bed | Bunks | Other beds | Source |
|---|---|---|---|---|
| 2022 | 72 × 80 in King | – | – | Holiday Rambler spec page |
| 2024 | 72 × 80 in King | – | – | Holiday Rambler spec page |
| 2025 | 72 × 80 in King | – | – | Holiday Rambler spec page |
| 2026 | 72 × 80 in King | – | – | Holiday Rambler spec page |
Years not listed weren't published.
The 38W floorplan
Holiday Rambler's 2027 38W floorplan.
Is this your 38W?
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2021 | Endeavor 38W | 40'1" | – |
| 2022 | Endeavor 38W | 40'-1" | – |
| 2023 | Endeavor 38W | 40' 1" | – |
| 2024 | Endeavor 38W | – | – |
| 2025 | Endeavor 38W | – | – |
| 2026 | Endeavor 38W | 40' 1" | – |
| 2027 | Endeavor 38W | 40' 1" | – |
Other Endeavor mattress sizes
Sources
- Holiday Rambler (holidayrambler.com): https://www.holidayrambler.com/wp-content/uploads/2026/05/Endeavor_SalesSheets_MY27.pdf
- Holiday Rambler (holidayrambler.com): https://www.holidayrambler.com/wp-content/uploads/2025/07/Endeavor_SalesSheets_MY26.pdf
- recreationalvehicles.info: https://recreationalvehicles.info/2025-holiday-rambler-endeavor-flyer/
- recreationalvehicles.info: https://recreationalvehicles.info/2024-holiday-rambler-endeavor-flyer/
- Holiday Rambler (holidayrambler.com), archived copy: https://web.archive.org/web/20240623215113/https://www.holidayrambler.com/models/endeavor/?view=specs
- recreationalvehicles.info: https://recreationalvehicles.info/2023-holiday-rambler-endeavor-flyer/
- Holiday Rambler (holidayrambler.com), archived copy: https://web.archive.org/web/20240714131617/https://www.holidayrambler.com/models/endeavor-2022/?view=specs
- Holiday Rambler (holidayrambler.com), archived copy: https://web.archive.org/web/20210621103620/https://www.holidayrambler.com/models/endeavor-2021/specs
Questions
What size mattress is in the Holiday Rambler Endeavor 38W?
The main bed is 72 × 80 in (Holiday Rambler spec page, 2026).