rigsize

Jayco Seneca 36FK mattress size

Years 2010–2017Sold as Seneca HD, SenecaLength 38' 6"
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.

Top pick
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
Mattress Insider The Sedona

Mattress InsiderThe Sedona

  • All-foam
  • 5.5 in thick
  • Firm
$40372" x 80" · list priceSee price
Reviewers' favorite
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
Best memory foam
Mattress Insider Elation Gel Foam

Mattress InsiderElation Gel Foam

  • Memory foam
  • 6 in thick
  • cushion firm
$65972" x 80" · list priceSee price
Best hybrid
RVMattress.com CopperFlex RV Hybrid

RVMattress.comCopperFlex RV Hybrid

  • Hybrid
  • 10 in thick
  • Medium-Firm
$1,065RV King 72x80 · list priceSee price
Best all-foam
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
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 Insider Park Meadow Encased Coil II

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 Insider Park Meadow Encased Coil II

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
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 36FK floorplan

Jayco Seneca 36FK floorplan, 2017

Jayco's 2017 36FK floorplan.

Is this your 36FK?

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

YearModelLengthSleeps
2010Seneca HD 36FK36' 7"8
2012Seneca 36FK38' 5"6-8
2013Seneca 36FK38' 8"5-6
2014Seneca 36FK38' 8"5-6
2015Seneca 36FK38' 6"5-6
2016Seneca 36FK38' 6"5-7
2017Seneca 36FK38' 6"–

Other Seneca mattress sizes

37FS37HJ37RB37TSAll Seneca floorplans

Sources

  1. Jayco (jayco.com), archived copy: https://web.archive.org/web/20160526093748/http://www.jayco.com:80/tools/archive/2010-seneca-hd-m/
  2. Jayco (jayco.com), archived copy: https://web.archive.org/web/20140615145110/http://www.jayco.com:80/tools/archive/2012-seneca-m/
  3. Jayco (jayco.com), archived copy: https://web.archive.org/web/20140423113223/http://www.jayco.com:80/tools/archive/2013-seneca-cm/
  4. Jayco (jayco.com), archived copy: https://web.archive.org/web/20150219020933/http://www.jayco.com:80/tools/archive/2014-seneca/36fk/
  5. Jayco (jayco.com), archived copy: https://web.archive.org/web/20150901003324/http://www.jayco.com:80/tools/archive/2015-seneca/36fk/
  6. Jayco (jayco.com), archived copy: https://web.archive.org/web/20160807035348/http://www.jayco.com:80/tools/archive/2016-seneca/36fk/
  7. Jayco (jayco.com), archived copy: https://web.archive.org/web/20210917201923/https://www.jayco.com/rvs/class-c-motorhomes/2017-seneca/36fk/

Questions

What size mattress is in the Jayco Seneca 36FK?

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

What size are the Jayco Seneca 36FK bunk mattresses?

58 × 80 in (Jayco spec sheet, 2015).