rigsize

Newmar Dutch Star 4345 mattress size

Years 2027Sold as Dutch StarLength 43' 09"Sleeps 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 →

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 Dutch Star

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

Bed sizes by year

YearMain bedBunksOther bedsSource
202772 × 80 in King––Dealer report
202772 × 80 in King––Newmar spec sheet

Years not listed weren't published.

The 4345 floorplan

Newmar Dutch Star 4345 floorplan, 2027

Newmar's 2027 4345 floorplan.

Is this your 4345?

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

YearModelLengthSleeps
2027Dutch Star 434543' 09"6

Other Dutch Star mattress sizes

Sources

  1. Newmar (newmarcorp.com): https://www.newmarcorp.com/content/dam/newmar/page-assets/dealer-resources/brochures/2027/MY27DS_DigiBrochure_FNL.pdf
  2. Newmar (newmarcorp.com): https://www.newmarcorp.com/models/dutch-star/2027-dutch-star/floor-plans/4345

Questions

What size mattress is in the Newmar Dutch Star 4345?

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