rigsize

Jayco Seneca 37RB mattress size

Years 2012–2021Sold as SenecaLength 39' 4"
72 in 80 in
To scale. Dashed: a regular queen.
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.

Great all around
RVMattress.com Signature Hybrid

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
Best value
RVMattress.com CopperFlex Essential

RVMattress.comCopperFlex Essential

  • All-foam
  • 6 in thick
  • five comfort options
$799RV King - 72x80 · list priceSee price
Firm
RVMattress.com Plank Firm

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
Cooling
RVMattress.com Aurora Luxe Cooling

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
Heavy duty
RVMattress.com Titan Plus Luxe

RVMattress.comTitan Plus Luxe

  • Hybrid
  • 13 in thick
  • Plush
$1,865RV King - 72x80 · list priceSee price
Helix pick
Helix Helix Midnight

HelixHelix Midnight

  • Hybrid
  • 11.5 in thick
  • Medium Feel

Sleep Foundation: Best Mattress for Side Sleepers Read review

$1,489RV King · list priceSee price
RV hybrid
RVMattress.com CopperFlex RV Hybrid

RVMattress.comCopperFlex RV Hybrid

  • Hybrid
  • 10 in thick
  • Medium-Firm
$1,065RV King 72x80 · list priceSee price
Custom size
Mattress Insider Luxury Gel Memory Foam

Mattress InsiderLuxury Gel Memory Foam

  • Memory foam
  • 8 in thick
  • not stated
Made to 72 × 80 inGet a quote

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 Insider Luxury Gel Memory Foam

Mattress InsiderLuxury Gel Memory Foam

  • Memory foam
  • 8 in thick
  • not stated
Made to 58 × 80 inGet a quote
Bedroom in a Seneca

The Seneca bedroom. Measure the platform, not the old mattress, before you buy.

Bed sizes by year

YearMain bedBunksOther bedsSource
201372 × 80 in King60 × 80 in–Jayco spec sheet
201472 × 80 in King58 × 80 in–Jayco spec sheet
201572 × 80 in King58 × 80 in–Jayco spec sheet

Years not listed weren't published.

The 37RB floorplan

Jayco Seneca 37RB floorplan, 2021

Jayco's 2021 37RB floorplan.

Is this your 37RB?

Check the year and length against your RV before you order.

YearModelLengthSleeps
2012Seneca 37RB38' 9"5-6
2013Seneca 37RB38' 9"5-6
2014Seneca 37RB38' 9"5-6
2015Seneca 37RB38' 6"5-6
2016Seneca 37RB38' 6"5-7
2017Seneca 37RB38' 6"–
2018Seneca 37RB38' 6"–
2019Seneca 37RB39' 4"–
2020Seneca 37RB39' 4"–
2021Seneca 37RB39' 4"–

Other Seneca mattress sizes

36FK37FS37HJ37TSAll Seneca floorplans

Sources

  1. Jayco (jayco.com), archived copy: https://web.archive.org/web/20140615145110/http://www.jayco.com:80/tools/archive/2012-seneca-m/
  2. Jayco (jayco.com), archived copy: https://web.archive.org/web/20140423113223/http://www.jayco.com:80/tools/archive/2013-seneca-cm/
  3. Jayco (jayco.com), archived copy: https://web.archive.org/web/20150929010413/http://www.jayco.com:80/tools/archive/2014-seneca/37rb/
  4. Jayco (jayco.com), archived copy: https://web.archive.org/web/20150903012227/http://www.jayco.com:80/tools/archive/2015-seneca/37rb/
  5. Jayco (jayco.com), archived copy: https://web.archive.org/web/20160810015509/http://www.jayco.com:80/tools/archive/2016-seneca/37rb/
  6. Jayco (jayco.com), archived copy: https://web.archive.org/web/20210923061010/https://www.jayco.com/rvs/class-c-motorhomes/2017-seneca/37rb/
  7. Jayco (jayco.com), archived copy: https://web.archive.org/web/20210926130402/https://www.jayco.com/rvs/class-c-motorhomes/2018-seneca/37rb/
  8. Jayco (jayco.com), archived copy: https://web.archive.org/web/20210918231043/https://www.jayco.com/rvs/class-c-motorhomes/2019-seneca/37rb/
  9. Jayco (jayco.com), archived copy: https://web.archive.org/web/20210924160628/https://www.jayco.com/rvs/class-c-motorhomes/2020-seneca/37rb/
  10. Jayco (jayco.com), archived copy: https://web.archive.org/web/20210926133058/https://www.jayco.com/rvs/class-c-motorhomes/2021-seneca/37rb/

Questions

What size mattress is in the Jayco Seneca 37RB?

The main bed is 72 × 80 in (Jayco spec sheet, 2015).

What size are the Jayco Seneca 37RB bunk mattresses?

58 × 80 in (Jayco spec sheet, 2015).