Great all around
RVMattress.comSignature Hybrid
- Hybrid
- 13.25 in thick
- Soft / Medium / Firm
Sleep Foundation: Best Mattress Overall Read review
$1,865RV King - 72x80 · list priceSee price
Fleetwood Discovery 44B mattress size
Main bed72 × 80 inRV king
That's an RV king, 4 in narrower than a regular king (76 × 80 in). A regular king won't fit, so get an RV king in exactly 72 × 80 in.
About the RV king size →Fleetwood spec sheet, 2027.
Bunks28 × 73 in
Bunk. Fleetwood spec sheet, 2027.
Common RV bunk sizes →
Mattresses in 72 × 80 in
We may earn a commission when you buy through some of these links. It doesn't change which mattresses we list.
Best value
RVMattress.comCopperFlex Essential
- All-foam
- 6 in thick
- five comfort options
$799RV King - 72x80 · list priceSee price
Firm
RVMattress.comPlank Firm
- All-foam
- 10 in thick
- Firm / Extra Firm
Mattress Clarity: Best RV Mattress for Heavy People Read review
$1,532RV King - 72x80 · list priceSee price
Cooling
RVMattress.comAurora Luxe Cooling
- Hybrid
- 13.25 in thick
- Soft / Medium / Firm
Sleep Foundation: Best Mattress for Temperature Regulation Read review
$2,465RV King - 72x80 · list priceSee price
Heavy duty
RVMattress.comTitan Plus Luxe
- Hybrid
- 13 in thick
- Plush
$1,865RV King - 72x80 · list priceSee price
Helix pick
HelixHelix Midnight
- Hybrid
- 11.5 in thick
- Medium Feel
Sleep Foundation: Best Mattress for Side Sleepers Read review
$1,489RV King · list priceSee price
RV hybrid
RVMattress.comCopperFlex RV Hybrid
- Hybrid
- 10 in thick
- Medium-Firm
$1,065RV King 72x80 · list priceSee price
Custom size
Mattress InsiderLuxury Gel Memory Foam
- Memory foam
- 8 in thick
- not stated
Made to 72 × 80 inGet a quote
Bunk mattresses in 28 × 73 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 InsiderLuxury Gel Memory Foam
- Memory foam
- 8 in thick
- not stated
Made to 28 × 73 inGet a quote
The Discovery bedroom. Measure the platform, not the old mattress, before you buy.
Bed sizes by year
| Year | Main bed | Bunks | Other beds | Source |
|---|---|---|---|---|
| 2026 | 72 × 80 in King | 28 × 73 in | – | Fleetwood spec sheet |
| 2027 | 72 × 80 in King | 28 × 73 in | – | Fleetwood spec sheet |
Years not listed weren't published.
The 44B floorplan
Fleetwood's 2027 44B floorplan.
Is this your 44B?
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2020 | Discovery LXE 44B | – | – |
| 2021 | Discovery LXE 44B | – | – |
| 2022 | Discovery LXE 44B | 44'-0" | – |
| 2023 | Discovery LXE 44B | 44' 0" | – |
| 2024 | Discovery LXE 44B | – | – |
| 2025 | Discovery LXE 44B | 44'0" | – |
| 2026 | Discovery LXE 44B | 44' 0" | – |
| 2027 | Discovery LXE 44B | 44' 0" | – |
Other Discovery mattress sizes
Sources
- Fleetwood (fleetwoodrv.com): https://www.fleetwoodrv.com/wp-content/uploads/2026/05/DiscoveryLXE_SalesSheets_MY27.pdf
- Fleetwood (fleetwoodrv.com): https://www.fleetwoodrv.com/wp-content/uploads/2025/07/DiscoveryLXE_SalesSheets_MY26.pdf
- recreationalvehicles.info: https://recreationalvehicles.info/2025-fleetwood-discovery-lxe-flyer/
- recreationalvehicles.info: https://recreationalvehicles.info/2024-fleetwood-discovery-lxe-flyer/
- Fleetwood (fleetwoodrv.com), archived copy: https://web.archive.org/web/20230603181517/https://www.fleetwoodrv.com/models/discovery-lxe/?view=specs
- recreationalvehicles.info: https://recreationalvehicles.info/2023-fleetwood-discovery-lxe-flyer/
- Fleetwood (fleetwoodrv.com), archived copy: https://web.archive.org/web/20260710112308/https://www.fleetwoodrv.com/models/discovery-lxe-2022/?view=specs
- Fleetwood (fleetwoodrv.com), archived copy: https://web.archive.org/web/20211022003353/https://www.fleetwoodrv.com/models/discovery-lxe-2021/specs
- Fleetwood (fleetwoodrv.com), archived copy: https://web.archive.org/web/20210225095311/https://www.fleetwoodrv.com/models/discovery-lxe-1/specs
Questions
What size mattress is in the Fleetwood Discovery 44B?
The main bed is 72 × 80 in (Fleetwood spec sheet, 2027).
What size are the Fleetwood Discovery 44B bunk mattresses?
28 × 73 in (Fleetwood spec sheet, 2027).