Custom size
Mattress InsiderPark Meadow Encased Coil II
- Hybrid
- 8 in thick
- cushion-firm
Sleep Foundation: Best Mattress for Pressure Relief Read review
Made to 72 × 74 inGet a quote
Thor Quantum KW29 mattress size
Main bed72 × 74 inRV short king
That's an RV short king. Few brands stock 72 × 74 in, so order a custom size.
About the RV short king size →Thor spec sheet, 2026.
Bunks52 × 96 in
Bunk. Thor spec sheet, 2026.
Common RV bunk sizes →
Mattresses in 72 × 74 in
We may earn a commission when you buy through some of these links. It doesn't change which mattresses we list.
Bunk mattresses in 52 × 96 in
Some bunks have a rounded corner, so trace yours before a custom cut. A thicker bunk mattress takes headroom from the bunk above.
Custom size
Mattress InsiderPark Meadow Encased Coil II
- Hybrid
- 8 in thick
- cushion-firm
Sleep Foundation: Best Mattress for Pressure Relief Read review
Made to 52 × 96 inGet a quote
Bed sizes by year
| Year | Main bed | Bunks | Other beds | Source |
|---|---|---|---|---|
| 2020 | 72 × 74 in King | 54 × 96 in | – | Thor spec sheet |
| 2021 | 72 × 74 in King | 54 × 96 in | – | Thor spec sheet |
| 2022 | 72 × 74 in King | 54 × 96 in | – | Thor spec sheet |
| 2023 | 72 × 74 in King | 52 × 96 in | – | Thor spec sheet |
| 2024 | 72 × 74 in King | 52 × 96 in | – | Thor spec sheet |
| 2025 | 72 × 74 in King | 52 × 96 in | – | Thor spec sheet |
| 2026 | 72 × 74 in King | 52 × 96 in | – | Thor spec sheet |
Years not listed weren't published.
The KW29 floorplan
Thor's 2027 KW29 floorplan.
Is this your KW29?
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2020 | Quantum KW29 | 30'-11" | – |
| 2021 | Quantum KW29 | 31' | – |
| 2022 | Quantum KW29 | 31' | – |
| 2023 | Quantum KW29 | 31' | – |
| 2024 | Quantum KW29 | 31' | – |
| 2025 | Quantum KW29 | 31' | – |
| 2026 | Quantum KW29 | 31'-0" | – |
| 2027 | Quantum KW29 | 31' | 5 |
Other Quantum mattress sizes
Sources
- Thor (media-center.thormotorcoach.com): https://media-center.thormotorcoach.com/m/97a0d79ef40d446/original/c7ac2de7-e247-4203-9f77-aee8f1a66cbc_2020-quantum-digital-brochure-oh-spreads-pdf.pdf
- Thor (media-center.thormotorcoach.com): https://media-center.thormotorcoach.com/m/5fd680465ea7fa87/original/1ee02cdd-e1c5-405d-aae9-bee064c27953_2021-oh-quantum-web-pdf.pdf
- Thor (media-center.thormotorcoach.com): https://media-center.thormotorcoach.com/m/30f969846b43a0e5/original/c6ef889a-5ddc-4e30-9ec1-69206e9d02eb_2022-oh-quantum-pdf.pdf
- Thor (media-center.thormotorcoach.com): https://media-center.thormotorcoach.com/m/17bb6e06234f5807/original/df7a7660-361b-4011-a8a7-80f286f6529c_2023-OH-Quantum-pdf.pdf
- Thor (media-center.thormotorcoach.com): https://media-center.thormotorcoach.com/m/3d419b8110fef064/original/b3b9f546-e61a-47b7-97dc-c9fd512773bb_2024-OH-Quantum-pdf.pdf
- Thor (media-center.thormotorcoach.com): https://media-center.thormotorcoach.com/m/7862dac75d169fcf/original/Z64ALJbqstJ9-lIS_2025-TS-Quantum-021225-pdf.pdf
- Thor (media-center.thormotorcoach.com): https://media-center.thormotorcoach.com/m/79058c180a7dd728/original/aM1xcJ5xUNkB06Ym_2026-OH-Quantum-pdf.pdf
- Thor (thormotorcoach.com): https://www.thormotorcoach.com/quantum/floor-plans/kw29
Questions
What size mattress is in the Thor Quantum KW29?
The main bed is 72 × 74 in (Thor spec sheet, 2026).
What size are the Thor Quantum KW29 bunk mattresses?
52 × 96 in (Thor spec sheet, 2026).