Custom size
- Hybrid
- 8 in thick
- cushion-firm
Sleep Foundation: Best Mattress for Pressure Relief Read review
Made to 72 × 76 inGet a quote
That isn't a standard mattress size, so order a custom size cut to your platform.
Thor spec sheet, 2021.
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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 |
|---|---|---|---|---|
| 2020 | 72 × 76 in King | 54 × 74 in | 87 x 68 Sofa Bed | Thor spec sheet |
| 2021 | 72 × 76 in King | 54 × 74 in | 60 x 74 Sofa Bed | Thor spec sheet |
Years not listed weren't published.

Thor's 2021 35.4 floorplan.
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2020 | Miramar 35.4 | 37' | – |
| 2021 | Miramar 35.4 | 37'-2" | – |
The main bed is 72 × 76 in (Thor spec sheet, 2021).
54 × 74 in (Thor spec sheet, 2021).