Great all around
RVMattress.comSignature Hybrid
- Hybrid
- 13.25 in thick
- Soft / Medium / Firm
Sleep Foundation: Best Mattress Overall Read review
$1,865Short King - 72x75 · list priceSee price
Winnebago Sunstar 33K mattress size
Main bed72 × 75 inRV short king
That's an RV short king. RV mattress sellers stock it, or order a custom size.
About the RV short king size →Winnebago floorplan drawing, 2025.
Mattresses in 72 × 75 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
$799Short King - 72x75 · list priceSee price
Firm
RVMattress.comPlank Firm Luxe
- Hybrid
- 13 in thick
- Firm / Extra Firm
$1,865Short King - 72x75 · 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
$2,465Short King - 72x75 · list priceSee price
RV hybrid
RVMattress.comCopperFlex RV Hybrid
- Hybrid
- 10 in thick
- Medium-Firm
$1,065Short King - 72x75 · list priceSee price
Custom size
Mattress InsiderLuxury Gel Memory Foam
- Memory foam
- 8 in thick
- not stated
Made to 72 × 75 inGet a quote
The Sunstar bedroom. Measure the platform, not the old mattress, before you buy.
Bed sizes by year
| Year | Main bed | Bunks | Other beds | Source |
|---|---|---|---|---|
| 2023 | 72 × 75 in King | – | Loft 50 × 80 in, Sofa 40 × 66 in | Winnebago floorplan drawing |
| 2024 | 72 × 75 in King | – | Loft 50 × 80 in, Sofa 40 × 66 in | Winnebago floorplan drawing |
| 2025 | 72 × 75 in King | – | Loft 50 × 80 in, Sofa 40 × 66 in | Winnebago floorplan drawing |
Years not listed weren't published.
The 33K floorplan
Winnebago's 2025 33K floorplan.
Is this your 33K?
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2023 | Sunstar 33K | 34'3" | 6 |
| 2024 | Sunstar 33K | 34'3" | 6 |
| 2025 | Sunstar 33K | 34'3" | 6 |
Other Sunstar mattress sizes
Sources
- Winnebago (winnebago.com): https://www.winnebago.com/models/product/specifications/motorhomes/class-a/sunstar
- Winnebago (winnebago.com): https://www.winnebago.com/models/product/specifications/motorhomes/class-a/2024-sunstar
- Winnebago (winnebago.com): https://www.winnebago.com/models/product/specifications/motorhomes/class-a/2023-sunstar
Questions
What size mattress is in the Winnebago Sunstar 33K?
The main bed is 72 × 75 in (Winnebago floorplan drawing, 2025).