rigsize

Forest River Cedar Creek 388RK2 mattress size

Years 2022–2024Sold as Cedar CreekLength 42'
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 →

Forest River spec sheet, 2024.

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

Bed sizes by year

YearMain bedBunksOther bedsSource
202272 × 80 in King––2022 Forest River Cedar Creek brochure
202272 × 80 in King––Forest River spec sheet
202472 × 80 in King––2024 Forest River Cedar Creek brochure
202472 × 80 in King––Forest River spec sheet

Years not listed weren't published.

Is this your 388RK2?

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

YearModelLengthSleeps
2022Cedar Creek 388RK241' 7"–
2024Cedar Creek 388RK242'–

Other Cedar Creek mattress sizes

Sources

  1. recreationalvehicles.info: https://recreationalvehicles.info/2024-forest-river-cedar-creek/2024-forest-river-cedar-creek-brochure-page-019.jpg
  2. recreationalvehicles.info: https://recreationalvehicles.info/2022-forest-river-cedar-creek/2022-forest-river-cedar-creek-brochure-page-011.jpg

Questions

What size mattress is in the Forest River Cedar Creek 388RK2?

The main bed is 72 × 80 in (Forest River spec sheet, 2024).