rigsize

Northwood Arctic Fox 325MK mattress size

Years 2026–2027Sold as Arctic Fox NXT 5th Wheel, Arctic Fox Edge 5th WheelLength 36'10"
74 in 80 in
To scale. Dashed: a regular queen.
Main bed74 × 80 inCustom size

That isn't a standard mattress size, so order a custom size cut to your platform.

Northwood spec sheet, 2027.

Mattresses in 74 × 80 in

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Custom size
Mattress Insider Luxury Gel Memory Foam

Mattress InsiderLuxury Gel Memory Foam

  • Memory foam
  • 8 in thick
  • not stated
Made to 74 × 80 inGet a quote

Bed sizes by year

YearMain bedBunksOther bedsSource
–74 × 80 in––Northwood spec page
–74 × 80 in––Northwood spec page
202774 × 80 in King––Northwood spec sheet

Years not listed weren't published.

The 325MK floorplan

Northwood Arctic Fox 325MK floorplan, 2027

Northwood's 2027 325MK floorplan.

Is this your 325MK?

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

YearModelLengthSleeps
2026Arctic Fox NXT 5th Wheel 325MK36'10"–
2027Arctic Fox Edge 5th Wheel 325MK36'10"–

Other Arctic Fox mattress sizes

Sources

  1. Northwood (northwoodmfg.com): https://northwoodmfg.com/wp-content/uploads/2026/06/2027-AFox-Edge.pdf
  2. Northwood (northwoodmfg.com): https://northwoodmfg.com/wp-content/uploads/2025/11/Arctic-Fox-NXT-Brochure.pdf

Questions

What size mattress is in the Northwood Arctic Fox 325MK?

The main bed is 74 × 80 in (Northwood spec sheet, 2027).