Top pick
RVMattress.comSignature Hybrid
- Hybrid
- 13.25 in thick
- Soft / Medium / Firm
Sleep Foundation: Best Mattress Overall Read review
$1,865RV King - 72x80 · list priceSee price
Jayco Seneca 37HJ mattress size
Main bed72 × 80 inRV king
That's an RV king, 4 in narrower than a regular king (76 × 80 in). A regular king won't fit, so get an RV king in exactly 72 × 80 in.
About the RV king size →Jayco spec sheet, 2015.
Bunks58 × 80 in
Bunk. Jayco spec sheet, 2015.
Common RV bunk sizes →
Mattresses in 72 × 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
$40372" 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
$2,465RV King - 72x80 · list priceSee price
Best memory foam
Mattress InsiderElation Gel Foam
- Memory foam
- 6 in thick
- cushion firm
$65972" x 80" · list priceSee price
Best hybrid
RVMattress.comCopperFlex RV Hybrid
- Hybrid
- 10 in thick
- Medium-Firm
$1,065RV King 72x80 · 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
$1,532RV King - 72x80 · list priceSee price
Reviewer pick
HelixHelix Midnight
- Hybrid
- 11.5 in thick
- Medium Feel
Sleep Foundation: Best Mattress for Side Sleepers Read review
$1,489RV King · 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 80" · list priceSee price
Bunk mattresses in 58 × 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 58 × 80 inGet a quote
The Seneca bedroom. Measure the platform, not the old mattress, before you buy.
The 37HJ floorplan
Jayco's 2021 37HJ floorplan.
Is this your 37HJ?
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2015 | Seneca 37HJ | 38' 11" | 6-7 |
| 2016 | Seneca 37HJ | 38' 10" | 6-7 |
| 2017 | Seneca 37HJ | 38' 11" | – |
| 2018 | Seneca 37HJ | 38' 11" | – |
| 2019 | Seneca 37HJ | 39' 4" | – |
| 2020 | Seneca 37HJ | 39' 4" | – |
| 2021 | Seneca 37HJ | 39' 4" | – |
Other Seneca mattress sizes
Sources
- Jayco (jayco.com), archived copy: https://web.archive.org/web/20150828020155/http://www.jayco.com:80/tools/archive/2015-seneca/37hj/
- Jayco (jayco.com), archived copy: https://web.archive.org/web/20160807035525/http://www.jayco.com:80/tools/archive/2016-seneca/37hj/
- Jayco (jayco.com), archived copy: https://web.archive.org/web/20210922201457/https://www.jayco.com/rvs/class-c-motorhomes/2017-seneca/37hj/
- Jayco (jayco.com), archived copy: https://web.archive.org/web/20210919012048/https://www.jayco.com/rvs/class-c-motorhomes/2018-seneca/37hj/
- Jayco (jayco.com), archived copy: https://web.archive.org/web/20210917032019/https://www.jayco.com/rvs/class-c-motorhomes/2019-seneca/37hj/
- Jayco (jayco.com), archived copy: https://web.archive.org/web/20210928133035/https://www.jayco.com/rvs/class-c-motorhomes/2020-seneca/37hj/
- Jayco (jayco.com), archived copy: https://web.archive.org/web/20210922204543/https://www.jayco.com/rvs/class-c-motorhomes/2021-seneca/37hj/
Questions
What size mattress is in the Jayco Seneca 37HJ?
The main bed is 72 × 80 in (Jayco spec sheet, 2015).
What size are the Jayco Seneca 37HJ bunk mattresses?
58 × 80 in (Jayco spec sheet, 2015).