Custom size
- Hybrid
- 8 in thick
- cushion-firm
Sleep Foundation: Best Mattress for Pressure Relief Read review
Made to 54 × 80 inGet a quote
That isn't a standard mattress size, so order a custom size cut to your platform.
2019 Coachmen Prism brochure, 2019.
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Sleep Foundation: Best Mattress for Pressure Relief Read review
Some bunks have a rounded corner, so trace yours before a custom cut. A thicker bunk mattress takes headroom from the bunk above.
Sleep Foundation: Best Mattress for Pressure Relief Read review
| Year | Main bed | Bunks | Other beds | Source |
|---|---|---|---|---|
| 2019 | 54 × 80 in Full | – | Cab over 48 × 91 in, Dinette 44 × 76 in | 2019 Coachmen Prism brochure |
| 2021 | – | 48 × 91 in | – | Coachmen spec sheet |
Years not listed weren't published.

Coachmen's 2021 2150CB floorplan.
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2019 | Prism 2150CB | – | – |
| 2021 | Prism 2150CB | 25' 1" | – |
The main bed is 54 × 80 in (2019 Coachmen Prism brochure, 2019).
48 × 91 in (Coachmen spec sheet, 2021).