Top pick
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
Keystone Outback 271FK 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 →Dealer report, 2026. A reported size, not a guarantee: measure your platform first.
Mattresses in 72 × 75 in
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Best value
Mattress InsiderElation Gel Foam
- Memory foam
- 6 in thick
- cushion firm
$65972" x 75" · 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
$2,465Short King - 72x75 · list priceSee price
Best memory foam
Mattress InsiderLuxury Gel Memory Foam
- Memory foam
- 8 in thick
- not stated
$94972" x 75" · list priceSee price
Best hybrid
RVMattress.comCopperFlex RV Hybrid
- Hybrid
- 10 in thick
- Medium-Firm
$1,065Short King - 72x75 · 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
$1,532Short King - 72x75 · 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 75" · list priceSee price
Custom size
Mattress InsiderThe Sedona
- All-foam
- 5.5 in thick
- Firm
Made to 72 × 75 inGet a quote
The Outback bedroom. Measure the platform, not the old mattress, before you buy.
Bed sizes by year
| Year | Main bed | Bunks | Other beds | Source |
|---|---|---|---|---|
| 2025 | 72 × 75 in King | – | – | Keystone spec sheet |
| 2026 | 72 × 75 in King | – | – | Dealer report |
Years not listed weren't published.
The 271FK floorplan
Keystone's 2025 271FK floorplan.
Is this your 271FK?
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2025 | Outback 271FK | 31' 3" | – |
Other Outback mattress sizes
Sources
- keystonerv-prod.zaneray.com: https://keystonerv-prod.zaneray.com/cms/media/Zxj6LoF3NbkBX6y2_OB_2410_Brochure_WEB.pdf
Questions
What size mattress is in the Keystone Outback 271FK?
The main bed is 72 × 75 in (Dealer report, 2026).