Top pick
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
Thor Palazzo 37.4 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 →Thor spec sheet, 2026.
Bunks48 × 74 in
Bunk. Thor spec sheet, 2026.
Common RV bunk sizes →
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
Mattress InsiderThe Sedona
- All-foam
- 5.5 in thick
- Firm
$40372" x 80" · list priceSee price
Reviewers' favorite
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
Best memory foam
Mattress InsiderElation Gel Foam
- Memory foam
- 6 in thick
- cushion firm
$65972" x 80" · list priceSee price
Best hybrid
RVMattress.comCopperFlex RV Hybrid
- Hybrid
- 10 in thick
- Medium-Firm
$1,065RV King 72x80 · list priceSee price
Best all-foam
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
Reviewer 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
Reviewer pick
Mattress InsiderPark Meadow Encased Coil II
- Hybrid
- 8 in thick
- cushion-firm
Sleep Foundation: Best Mattress for Pressure Relief Read review
$84972" x 80" · list priceSee price
Bunk mattresses in 48 × 74 in
Some bunks have a rounded corner, so trace yours before a custom cut. A thicker bunk mattress takes headroom from the bunk above.
Top pick
RVMattress.comSignature Hybrid
- Hybrid
- 13.25 in thick
- Soft / Medium / Firm
Sleep Foundation: Best Mattress Overall Read review
$1,332Short Full - 48x74 · list priceSee price
Best value
RVMattress.comCopperFlex Essential
- All-foam
- 6 in thick
- five comfort options
$492Short Full - 48x74 · list priceSee price
Reviewers' favorite
RVMattress.comAurora Luxe Cooling
- Hybrid
- 13.25 in thick
- Soft / Medium / Firm
Sleep Foundation: Best Mattress for Temperature Regulation Read review
$1,799Short Full - 48x74 · list priceSee price
Best hybrid
Mattress InsiderAdventure Max Hybrid
- Hybrid
- 10.5 in thick
- Firm / Medium
$91948" x 74" · list priceSee price
Bed sizes by year
| Year | Main bed | Bunks | Other beds | Source |
|---|---|---|---|---|
| 2020 | 72 × 80 in King | 54 × 74 in | – | Thor spec sheet |
| 2021 | 72 × 80 in King | 54 × 74 in | – | Thor spec sheet |
| 2022 | 72 × 80 in King | 54 × 74 in | – | Thor spec sheet |
| 2023 | 72 × 80 in King | 54 × 74 in | – | Thor spec sheet |
| 2024 | 72 × 80 in King | 48 × 74 in | – | Thor spec sheet |
| 2025 | 72 × 80 in King | 48 × 74 in | – | Thor spec sheet |
| 2026 | 72 × 80 in King | 48 × 74 in | – | Thor spec sheet |
Years not listed weren't published.
The 37.4 floorplan
Thor's 2027 37.4 floorplan.
Is this your 37.4?
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2020 | Palazzo 37.4 | 38'-9" | – |
| 2021 | Palazzo 37.4 | 38'-11" | – |
| 2022 | Palazzo 37.4 | 38'-11" | – |
| 2023 | Palazzo 37.4 | 38'-11" | – |
| 2024 | Palazzo 37.4 | 38'-11" | – |
| 2025 | Palazzo GT 37.4 | 38'-11" | – |
| 2026 | Palazzo GT 37.4 | 38'-11" | – |
| 2027 | Palazzo 37.4 | 38'-11" | 6 |
Other Palazzo mattress sizes
Sources
- Thor (media-center.thormotorcoach.com): https://media-center.thormotorcoach.com/m/7d5c8ec1a65d56b5/original/59674a87-b7e7-4a2d-a672-2a9499e34587_2020-palazzo-digital-brochure-oh-spreads-pdf.pdf
- Thor (media-center.thormotorcoach.com): https://media-center.thormotorcoach.com/m/68ca622bc31e4047/original/01e4241b-01d1-4827-8067-5e1e1e847ba2_2021-oh-palazzo-web-pdf.pdf
- Thor (media-center.thormotorcoach.com): https://media-center.thormotorcoach.com/m/1607ad28def9b813/original/fa02308e-068e-416d-a460-1fc37efc1e27_2022-OH-Palazzo-pdf.pdf
- Thor (media-center.thormotorcoach.com): https://media-center.thormotorcoach.com/m/b92cd04b6ad7612/original/39210c25-2d06-47c1-81b4-1f70ca035e1e_2023-OH-Palazzo-pdf.pdf
- Thor (media-center.thormotorcoach.com): https://media-center.thormotorcoach.com/m/7a90b5915b31cf0c/original/2f484784-7849-4cb9-b1b1-b45ade8822b0_2024-MY-Palazzo-pdf.pdf
- Thor (thormotorcoach.com): https://www.thormotorcoach.com/palazzo/floor-plans/37.4
- Thor (media-center.thormotorcoach.com): https://media-center.thormotorcoach.com/m/6bf69daa21d999e0/original/ZunhZ7VsGrYSve63_2025-OH-PalazzoGT-pdf.pdf
- Thor (media-center.thormotorcoach.com): https://media-center.thormotorcoach.com/m/34a87ea0073098d4/original/aNGoQp5xUNkB0_RQ_2026-OH-PalazzoGT-pdf.pdf
Questions
What size mattress is in the Thor Palazzo 37.4?
The main bed is 72 × 80 in (Thor spec sheet, 2026).
What size are the Thor Palazzo 37.4 bunk mattresses?
48 × 74 in (Thor spec sheet, 2026).