rigsize

Heartland Sundance 29RLCS mattress size

Years 2026–2027Sold as SundanceLength 33' 12"Sleeps Up to 4
66 in 80 in
To scale. Dashed: a regular queen.
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.

Heartland spec page, 2027.

Mattresses in 66 × 80 in

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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

$1,465Olympic Queen - 66x80 · list priceSee price
Best value
RVMattress.com CopperFlex Essential

RVMattress.comCopperFlex Essential

  • All-foam
  • 6 in thick
  • five comfort options
$799Olympic Queen - 66x80 · list priceSee price
Firm
RVMattress.com Plank Firm Luxe

RVMattress.comPlank Firm Luxe

  • Hybrid
  • 13 in thick
  • Firm / Extra Firm
$1,865Olympic Queen - 66x80 · 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

$1,999Olympic Queen - 66x80 · list priceSee price
RV hybrid
RVMattress.com CopperFlex RV Hybrid

RVMattress.comCopperFlex RV Hybrid

  • Hybrid
  • 10 in thick
  • Medium-Firm
$799Olympic Queen - 66x80 · 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 66 × 80 inGet a quote
Bedroom in a Sundance

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

Bed sizes by year

YearMain bedBunksOther bedsSource
202666 × 80 in––Heartland spec page
202766 × 80 in––Heartland spec page

Years not listed weren't published.

The 29RLCS floorplan

Heartland Sundance 29RLCS floorplan, 2027

Heartland's 2027 29RLCS floorplan.

Is this your 29RLCS?

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

YearModelLengthSleeps
2026Sundance 29RLCS33' 12"Up to 4
2027Sundance 29RLCS33' 12"Up to 4

Other Sundance mattress sizes

Sources

  1. Heartland (heartlandrvs.com): https://heartlandrvs.com/rv-model/29rlcs-2027/
  2. Heartland (heartlandrvs.com): https://heartlandrvs.com/rv-model/29rlcs/

Questions

What size mattress is in the Heartland Sundance 29RLCS?

The main bed is 66 × 80 in (Heartland spec page, 2027).