- Hybrid
- 13.25 in thick
- Soft / Medium / Firm
Sleep Foundation: Best Mattress Overall Read review
That's the same size as a regular queen, so any standard queen mattress fits.
About the RV queen size →recreationalvehicles.info, 2021.
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Sleep Foundation: Best Mattress Overall Read review
Sleep Foundation: Best Mattress for Temperature Regulation Read review
Mattress Clarity: Best RV Mattress for Heavy People Read review
Sleep Foundation: Best Mattress for Side Sleepers Read review
Sleep Foundation: Best Mattress for Pressure Relief Read review

The Fuzion bedroom. Measure the platform, not the old mattress, before you buy.
| Year | Main bed | Bunks | Other beds | Source |
|---|---|---|---|---|
| 2018 | 60 × 80 in Queen | – | – | recreationalvehicles.info |
| 2021 | 60 × 80 in Queen | – | – | recreationalvehicles.info |
Years not listed weren't published.

Keystone's 2024 369 floorplan.
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2017 | Fuzion 369 | 39' 0" | – |
| 2021 | Fuzion 369 | 39 ft 0 in | 8 |
| 2022 | Fuzion 369 | 39 ft 0 in | 8 |
| 2023 | Fuzion 369 | 39 ft 0 in | 8 |
| 2024 | Fuzion 369 | 39 ft 0 in | 8 |
The main bed is 60 × 80 in (recreationalvehicles.info, 2021).