rigsize

Heartland Milestone 386BH mattress size

Years 2020–2024Sold as MilestoneLength 43'3"Sleeps 7 - 8
70 in 80 in
To scale. Dashed: a regular queen.
Main bed70 × 80 inRV king

That's an RV king, 6 in narrower than a regular king (76 × 80 in). A regular king won't fit, so get an RV king in exactly 70 × 80 in.

About the RV king size →

Heartland spec sheet, 2022.

Mattresses in 70 × 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

$1,865RV King - 70x80 · list priceSee price
Best value
RVMattress.com CopperFlex Essential

RVMattress.comCopperFlex Essential

  • All-foam
  • 6 in thick
  • five comfort options
$799RV King - 70x80 · list priceSee price
Firm
RVMattress.com Plank Firm Luxe

RVMattress.comPlank Firm Luxe

  • Hybrid
  • 13 in thick
  • Firm / Extra Firm
$1,865RV King - 70x80 · 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 - 70x80 · list priceSee price
RV hybrid
RVMattress.com CopperFlex RV Hybrid

RVMattress.comCopperFlex RV Hybrid

  • Hybrid
  • 10 in thick
  • Medium-Firm
$1,065RV King - 70x80 · 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 70 × 80 inGet a quote
Bedroom in a Milestone

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

Bed sizes by year

YearMain bedBunksOther bedsSource
201970 × 80 in King––recreationalvehicles.info
202170 × 80 in King––recreationalvehicles.info
202170 × 80 in King––Heartland spec sheet
202270 × 80 in King––recreationalvehicles.info
202270 × 80 in King––Heartland spec sheet

Years not listed weren't published.

The 386BH floorplan

Heartland Milestone 386BH floorplan, 2020

Heartland's 2020 386BH floorplan.

Is this your 386BH?

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

YearModelLengthSleeps
2020Milestone 386BH43'-7"7-8
2021Milestone 386BH43'7"–
2022Milestone 386BH43'7"7-8
2023Milestone 386BH43'3"7 - 8
2024Milestone 386BH43'3"7 - 8

Other Milestone mattress sizes

Sources

  1. Heartland (heartlandrvs.com): https://heartlandrvs.com/wp-content/uploads/2024/01/2024-HRV-MI-4P-Brochure-Web.pdf
  2. Heartland (heartlandrvs.com): https://heartlandrvs.com/wp-content/uploads/2022/12/MI-4P-BROCHURE-lowres-1.pdf
  3. Heartland (heartlandrvs.com): https://heartlandrvs.com/wp-content/uploads/2022/03/2022-MS-Literature.pdf
  4. Heartland (heartlandrvs.com): https://heartlandrvs.com/wp-content/uploads/2021/03/Heartland_Brochure_MI_4P-3-29.pdf
  5. Heartland (heartlandrvs.com), archived copy: https://web.archive.org/web/20201124174216/https://heartlandrvs.com/2020/fifth-wheel/milestone/milestone-386bh/

Questions

What size mattress is in the Heartland Milestone 386BH?

The main bed is 70 × 80 in (Heartland spec sheet, 2022).