Top pick
RVMattress.comSignature Hybrid
- Hybrid
- 13.25 in thick
- Soft / Medium / Firm
Sleep Foundation: Best Mattress Overall Read review
$1,465Queen · list priceSee price
Forest River Rockwood G20FK mattress size
Main bed60 × 80 inQueen
That's the same size as a regular queen, so any standard queen mattress fits.
About the RV queen size →Forest River spec page, 2026.
Bunks (1)26 × 80 in
Bunk. Forest River spec page, 2026.
Common RV bunk sizes →
Mattresses in 60 × 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
$36160" 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
$1,999Queen · list priceSee price
Best memory foam
Mattress InsiderElation Gel Foam
- Memory foam
- 6 in thick
- cushion firm
$45960" x 80" · list priceSee price
Best hybrid
RVMattress.comCopperFlex RV Hybrid
- Hybrid
- 10 in thick
- Medium-Firm
$799Queen · 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
$1,332Queen · list priceSee price
Reviewer pick
HelixHelix Midnight
- Hybrid
- 11.5 in thick
- Medium Feel
Sleep Foundation: Best Mattress for Side Sleepers Read review
$1,183Queen · 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
$66960" x 80" · list priceSee price
Bunk mattresses in 26 × 80 in
Some bunks have a rounded corner, so trace yours before a custom cut. A thicker bunk mattress takes headroom from the bunk above.
Custom size
Mattress InsiderPark Meadow Encased Coil II
- Hybrid
- 8 in thick
- cushion-firm
Sleep Foundation: Best Mattress for Pressure Relief Read review
Made to 26 × 80 inGet a quote
The Rockwood bedroom. Measure the platform, not the old mattress, before you buy.
Bed sizes by year
| Year | Main bed | Bunks | Other beds | Source |
|---|---|---|---|---|
| 2025 | 60 × 80 in Queen | 26 × 80 in flip-up bunk | table 30x15 | Forest River floorplan drawing |
| 2026 | 60 × 80 in Queen | 26 × 80 in | – | Forest River spec page |
Years not listed weren't published.
The G20FK floorplan
Forest River's 2025 G20FK floorplan.
Is this your G20FK?
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2025 | Rockwood Geo Pro G20FK | 21' 2" | – |
| 2026 | Rockwood Geo Pro G20FK | – | 4 |
| 2026 | Rockwood Geo Pro G20FK | 21' 2" | – |
Other Rockwood mattress sizes
Sources
- Forest River (forestriverinc.com), archived copy: https://web.archive.org/web/20250822015228/https://www.forestriverinc.com/rvs/rockwood-geo-pro/G20FK/9635
- campersinn.com: https://www.campersinn.com/product/new-2026-forest-river-rv-rockwood-geo-pro-g20fk-2869128-29
- Forest River (forestriverinc.com): https://forestriverinc.com/rvs/rockwood-geo-pro/G20FK/11591
Questions
What size mattress is in the Forest River Rockwood G20FK?
The main bed is 60 × 80 in (Forest River spec page, 2026).
What size are the Forest River Rockwood G20FK bunk mattresses?
26 × 80 in (Forest River spec page, 2026).