rigsize

Newmar New Aire 3543 mattress size

Years 2020–2027Sold as New AireLength 35' 10"Sleeps 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 →

Newmar spec sheet, 2027.

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
Bedroom in a New Aire

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

Bed sizes by year

YearMain bedBunksOther bedsSource
202172 × 80 in King––Newmar spec page
202372 × 80 in King––Newmar spec sheet
202672 × 80 in King––Newmar 2026 brochure
202672 × 80 in King––Newmar spec sheet
202772 × 80 in King––Newmar spec sheet

Years not listed weren't published.

The 3543 floorplan

Newmar New Aire 3543 floorplan, 2027

Newmar's 2027 3543 floorplan.

Is this your 3543?

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

YearModelLengthSleeps
2020New Aire 3543––
2021New Aire 3543––
2022New Aire 3543––
2023New Aire 3543––
2024New Aire 3543––
2025New Aire 3543––
2026New Aire 354335' 10"4
2027New Aire 354335' 10"4

Other New Aire mattress sizes

Sources

  1. Newmar (newmarcorp.com): https://www.newmarcorp.com/content/dam/newmar/page-assets/dealer-resources/brochures/2020/2020_New_Aire.pdf
  2. Newmar (newmarcorp.com): https://www.newmarcorp.com/content/dam/newmar/page-assets/dealer-resources/brochures/2021/2021_New_Aire.pdf
  3. Newmar (newmarcorp.com): https://www.newmarcorp.com/content/dam/newmar/page-assets/dealer-resources/brochures/2022/2022_New_Aire.pdf
  4. Newmar (newmarcorp.com): https://www.newmarcorp.com/content/dam/newmar/page-assets/dealer-resources/brochures/2023/2023_New_Aire.pdf
  5. Newmar (newmarcorp.com): https://www.newmarcorp.com/content/dam/newmar/page-assets/dealer-resources/brochures/2024-newmar-digital-brochures/2024-new-aire-brochure-final-combo-new.pdf
  6. Newmar (newmarcorp.com): https://www.newmarcorp.com/content/dam/newmar/page-assets/model-page-assets/2025-model-year-page-assets/new-aire/10-brochure__na25/2025-new-aire-digital-brochure-final2-combo.pdf
  7. Newmar (newmarcorp.com): https://www.newmarcorp.com/content/dam/newmar/brochure/2026-newmar-digital-brochures/2026-new-aire-brochure-final-combo.pdf
  8. Newmar (newmarcorp.com): https://www.newmarcorp.com/models/new-aire/2026-new-aire/floor-plans/3543
  9. Newmar (newmarcorp.com): https://www.newmarcorp.com/content/dam/newmar/page-assets/dealer-resources/brochures/2027/MY27NA_DigiBrochure_FNL.pdf
  10. Newmar (newmarcorp.com): https://www.newmarcorp.com/models/new-aire/2027-new-aire/floor-plans/3543

Questions

What size mattress is in the Newmar New Aire 3543?

The main bed is 72 × 80 in (Newmar spec sheet, 2027).