Custom size
- Hybrid
- 8 in thick
- cushion-firm
Sleep Foundation: Best Mattress for Pressure Relief Read review
Made to 36 × 73 inGet a quote
That isn't a standard mattress size, so order a custom size cut to your platform.
Thor spec sheet, 2020.
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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

Thor's 2020 24ST floorplan.
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2020 | Synergy 24ST | 25'-10" | – |
The main bed is 36 × 73 in (Thor spec sheet, 2020).
36 × 75 in (Thor spec sheet, 2020).