Custom size
- Hybrid
- 8 in thick
- cushion-firm
Sleep Foundation: Best Mattress for Pressure Relief Read review
Made to 54 × 74 inGet a quote
That isn't a standard mattress size, so order a custom size cut to your platform.
About the RV full size →Coachmen spec sheet, 2025.
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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

Coachmen's 2025 18DBS floorplan.
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2024 | Clipper Ultra-Lite 18DBS | 23' 0" | – |
| 2025 | Clipper Ultra-Lite 18DBS | 23' 0" | – |
The main bed is 54 × 74 in (Coachmen spec sheet, 2025).
42 × 72 in (Coachmen spec sheet, 2025).