10 floorplans · 2016–2025
Heartland Mallard mattress sizes
Pick your floorplan and year for the mattress size that fits.
The floorplan code is on the decal by your door or in your owner's paperwork.
Sold 2023 and later
Older floorplans
Mallard mattress sizes by floorplan
| Floorplan | Year | Main bed | Bunks | Source |
|---|---|---|---|---|
| 17BHL | 2025 | 60 × 80 in | – | Heartland spec page |
| 17RBL | 2025 | 60 × 80 in | – | Heartland spec page |
| M27 | 2016 | 60 × 74 in | – | Heartland spec sheet |
| M28 | 2016 | 60 × 74 in | – | Heartland spec sheet |
| M29 | 2016 | 60 × 74 in | – | Heartland spec sheet |
| M33 | 2016 | 60 × 74 in | – | Heartland spec sheet |
| M231 | 2016 | 60 × 74 in | – | Heartland spec sheet |
| M292 | 2016 | 60 × 74 in | – | Heartland spec sheet |
| M302 | 2016 | 60 × 74 in | – | Heartland spec sheet |
| M325 | 2017 | 60 × 74 in | – | Heartland spec sheet |
The newest year with a published size is shown. Each floorplan page lists every year.