Top pick
RVMattress.comSignature Hybrid
- Hybrid
- 13.25 in thick
- Soft / Medium / Firm
Sleep Foundation: Best Mattress Overall Read review
$1,465Olympic Queen - 66x80 · list priceSee price
Jayco Seismic 359 mattress size
Main bed66 × 80 inOlympic queen
That's an Olympic queen, 6 in wider than a regular queen. RV mattress sellers stock it; a regular queen would leave 6 in of platform bare.
Jayco floorplan drawing, 2027.
Mattresses in 66 × 80 in
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Best value
Mattress InsiderElation Gel Foam
- Memory foam
- 6 in thick
- cushion firm
$50966" 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
$1,999Olympic Queen - 66x80 · list priceSee price
Best memory foam
Mattress InsiderLuxury Gel Memory Foam
- Memory foam
- 8 in thick
- not stated
$89966" x 80" · list priceSee price
Best hybrid
RVMattress.comCopperFlex RV Hybrid
- Hybrid
- 10 in thick
- Medium-Firm
$799Olympic Queen - 66x80 · 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
$1,532Olympic Queen - 66x80 · 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
$79966" x 80" · list priceSee price
Custom size
Mattress InsiderThe Sedona
- All-foam
- 5.5 in thick
- Firm
Made to 66 × 80 inGet a quote
The Seismic bedroom. Measure the platform, not the old mattress, before you buy.
Bed sizes by year
| Year | Main bed | Bunks | Other beds | Source |
|---|---|---|---|---|
| 2023 | 72 × 80 in King | – | – | Jayco floorplan drawing |
| 2024 | 72 × 80 in Queen | – | – | Jayco floorplan drawing |
| 2025 | 72 × 80 in King | – | – | Jayco floorplan drawing |
| 2026 | 66 × 80 in King | – | – | Jayco floorplan drawing |
| 2027 | 66 × 80 in Queen | – | – | Jayco floorplan drawing |
Years not listed weren't published.
The 359 floorplan
Jayco's 2027 359 floorplan.
Is this your 359?
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2022 | Seismic 359 | 41' 7" | 8 |
| 2023 | Seismic 359 | 41' 9" | 8 |
| 2024 | Seismic 359 | 41' 9" | 8 |
| 2025 | Seismic 359 | 41' 9" | 6 |
| 2026 | Seismic 359 | 41' 8" | 6 |
| 2027 | Seismic 359 | – | 6 |
Other Seismic mattress sizes
Sources
- Jayco (jayco.com): https://www.jayco.com/rvs/toy-haulers/2023-seismic/359/
- Jayco (jayco.com): https://www.jayco.com/rvs/toy-haulers/2024-seismic/359/
- Jayco (jayco.com): https://www.jayco.com/rvs/toy-haulers/2025-seismic/359/
- Jayco (jayco.com): https://www.jayco.com/rvs/toy-haulers/2026-seismic/359/
- Jayco (jayco.com): https://www.jayco.com/rvs/toy-haulers/2027-seismic/359/
- Jayco (jayco.com), archived copy: https://web.archive.org/web/20241111212207/https://www.jayco.com/rvs/toy-haulers/2022-seismic/359/
Questions
What size mattress is in the Jayco Seismic 359?
The main bed is 66 × 80 in (Jayco floorplan drawing, 2027).