Great all around
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
Dutchmen Kodiak 3221RLSL mattress size
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 →Dutchmen spec page.
Mattresses in 70 × 80 in
We may earn a commission when you buy through some of these links. It doesn't change which mattresses we list.
Best value
RVMattress.comCopperFlex Essential
- All-foam
- 6 in thick
- five comfort options
$799RV King - 70x80 · list priceSee price
Firm
RVMattress.comPlank Firm Luxe
- Hybrid
- 13 in thick
- Firm / Extra Firm
$1,865RV King - 70x80 · list priceSee price
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.comCopperFlex RV Hybrid
- Hybrid
- 10 in thick
- Medium-Firm
$1,065RV King - 70x80 · list priceSee price
Custom size
Mattress InsiderLuxury Gel Memory Foam
- Memory foam
- 8 in thick
- not stated
Made to 70 × 80 inGet a quote
The Kodiak bedroom. Measure the platform, not the old mattress, before you buy.
The 3221RLSL floorplan
Dutchmen's 2023 3221RLSL floorplan.
Is this your 3221RLSL?
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2021 | Kodiak Ultimate 3221RLSL | 36' 11" | – |
| 2022 | Kodiak Ultimate 3221RLSL | 36' 11" | 4 |
| 2023 | Kodiak Ultimate 3221RLSL | 36' 11" | – |
| 2025 | Kodiak Ultimate 3221RLSL | 36'11" | 4 |
Other Kodiak mattress sizes
Sources
- Dutchmen (dutchmen.com), archived copy: https://web.archive.org/web/20221202053115/https://www.dutchmen.com/product/kodiak-ultimate?utm_source=thorindustries.com&utm_medium=referral&utm_content=RV-Types-travel-trailer
- Dutchmen (dutchmen.com), archived copy: https://web.archive.org/web/20241106073751/https://www.dutchmen.com/product/kodiak-ultimate?utm_source=thorindustries.com&utm_medium=referral&utm_content=RV-Types-travel-trailer
- Dutchmen (dutchmen.com), archived copy: https://web.archive.org/web/20240715042053/https://www.dutchmen.com/resources/media/user/brochure/1641415961_brcfile_Kodiak_Ultimate_2022_Catalog_Web.pdf
- Dutchmen (dutchmen.com), archived copy: https://web.archive.org/web/20250505063518/https://www.dutchmen.com/api/media/file/2025%20Kodiak%20Ultimate%20Floorplan%20Flyer%2010-7-24.pdf
Questions
What size mattress is in the Dutchmen Kodiak 3221RLSL?
The main bed is 70 × 80 in (Dutchmen spec page).