rigsize

Newmar Bay Star 3811 mattress size

Years 2021–2027Sold as Bay StarLength 38' 11"Sleeps 3
60 in 80 in
To scale. Dashed: a regular queen.
Main bed60 × 80 inQueen

That's the same size as a regular queen, so any standard queen mattress fits.

About the RV queen size →

Newmar spec sheet, 2027.

Mattresses in 60 × 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

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

RVMattress.comCopperFlex Essential

  • All-foam
  • 6 in thick
  • five comfort options
$524Queen · list priceSee price
Firm
RVMattress.com Plank Firm Luxe

RVMattress.comPlank Firm Luxe

  • Hybrid
  • 13 in thick
  • Firm / Extra Firm
$1,598Queen · 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

$1,999Queen · list priceSee price
Heavy duty
RVMattress.com Titan Plus Luxe

RVMattress.comTitan Plus Luxe

  • Hybrid
  • 13 in thick
  • Plush
$1,665Queen · 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

$1,183Queen · list priceSee price
RV hybrid
RVMattress.com CopperFlex RV Hybrid

RVMattress.comCopperFlex RV Hybrid

  • Hybrid
  • 10 in thick
  • Medium-Firm
$799Queen · 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 60 × 80 inGet a quote
Bedroom in a Bay Star

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

Bed sizes by year

YearMain bedBunksOther bedsSource
202160 × 80 in Queen––Newmar spec page
202160 × 80 in Queen––Newmar spec sheet
202660 × 80 in Queen––Newmar 2026 brochure
202660 × 80 in Queen––Newmar spec sheet
202760 × 80 in Queen––Newmar spec sheet

Years not listed weren't published.

The 3811 floorplan

Newmar Bay Star 3811 floorplan, 2027

Newmar's 2027 3811 floorplan.

Is this your 3811?

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

YearModelLengthSleeps
2021Bay Star 381138' 11"–
2022Bay Star 3811––
2023Bay Star 3811––
2024Bay Star 3811––
2025Bay Star 3811––
2026Bay Star 381138' 11"5
2027Bay Star 381138' 11"3

Other Bay Star mattress sizes

Sources

  1. Newmar (newmarcorp.com): https://www.newmarcorp.com/content/dam/newmar/page-assets/dealer-resources/brochures/2021/2021_Bay_Star___Bay_Star_Sport.pdf
  2. Newmar (newmarcorp.com): https://www.newmarcorp.com/content/dam/newmar/page-assets/dealer-resources/brochures/2022/2022_Bay_Star.pdf
  3. Newmar (newmarcorp.com): https://www.newmarcorp.com/content/dam/newmar/page-assets/dealer-resources/brochures/2023/2023_Bay_Star.pdf
  4. Newmar (newmarcorp.com): https://www.newmarcorp.com/content/dam/newmar/page-assets/dealer-resources/brochures/2024-newmar-digital-brochures/2024-bay-star-brochure-final-combo3-2.pdf
  5. Newmar (newmarcorp.com): https://www.newmarcorp.com/content/dam/newmar/page-assets/model-page-assets/2025-model-year-page-assets/bay-star/10-brochure__bs25/2025-bay-star-brochure-final-combo.pdf
  6. Newmar (newmarcorp.com): https://www.newmarcorp.com/content/dam/newmar/brochure/2026-newmar-digital-brochures/2026-bay-star-brochure-final-combo.pdf
  7. Newmar (newmarcorp.com): https://www.newmarcorp.com/models/bay-star/2026-bay-star/floor-plans/3811
  8. Newmar (newmarcorp.com): https://www.newmarcorp.com/content/dam/newmar/page-assets/dealer-resources/brochures/2027/MY27BS_DigiBrochure_FNL.pdf
  9. Newmar (newmarcorp.com): https://www.newmarcorp.com/models/bay-star/2027-bay-star/floor-plans/3811

Questions

What size mattress is in the Newmar Bay Star 3811?

The main bed is 60 × 80 in (Newmar spec sheet, 2027).