Great all around
- Hybrid
- 13.25 in thick
- Soft / Medium / Firm
Sleep Foundation: Best Mattress Overall Read review
$1,865RV King - 70x80 · list priceSee price
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 →recreationalvehicles.info, 2018.
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Sleep Foundation: Best Mattress Overall Read review
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| Year | Main bed | Bunks | Other beds | Source |
|---|---|---|---|---|
| 2015 | 70 × 80 in King | – | – | Heartland spec sheet |
| 2016 | 70 × 80 in King | – | – | recreationalvehicles.info |
| 2017 | 70 × 80 in King | – | – | recreationalvehicles.info |
| 2018 | 70 × 80 in King | – | – | recreationalvehicles.info |
Years not listed weren't published.

Heartland's 2020 40FLFS floorplan.
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2015 | ElkRidge 40FLFS | 42' 3" | 7+ |
| 2016 | ElkRidge 40FLFS | 42' 3" | – |
| 2017 | ElkRidge 40FLFS | 42' 3" | – |
| 2019 | ElkRidge 40FLFS | 42'-3-1/2" | 5-6 |
| 2020 | ElkRidge 40FLFS | 42'-3-1/2" | 5-6 |
The main bed is 70 × 80 in (recreationalvehicles.info, 2018).