Great all around
RVMattress.comSignature Hybrid
- Hybrid
- 13.25 in thick
- Soft / Medium / Firm
Sleep Foundation: Best Mattress Overall Read review
$1,465Queen · list priceSee price
Grand Design Momentum 350M mattress size
Main bed60 × 80 inQueen
That's the same size as a regular queen, so any standard queen mattress fits.
About the RV queen size →Grand Design spec sheet, 2018.
Mattresses in 60 × 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
$524Queen · list priceSee price
Firm
RVMattress.comPlank Firm Luxe
- Hybrid
- 13 in thick
- Firm / Extra Firm
$1,598Queen · 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
$1,999Queen · list priceSee price
Heavy duty
RVMattress.comTitan Plus Luxe
- Hybrid
- 13 in thick
- Plush
$1,665Queen · list priceSee price
Helix pick
HelixHelix Midnight
- Hybrid
- 11.5 in thick
- Medium Feel
Sleep Foundation: Best Mattress for Side Sleepers Read review
$1,183Queen · list priceSee price
RV hybrid
RVMattress.comCopperFlex RV Hybrid
- Hybrid
- 10 in thick
- Medium-Firm
$799Queen · list priceSee price
Custom size
Mattress InsiderLuxury Gel Memory Foam
- Memory foam
- 8 in thick
- not stated
Made to 60 × 80 inGet a quote
The Momentum bedroom. Measure the platform, not the old mattress, before you buy.
Bed sizes by year
| Year | Main bed | Bunks | Other beds | Source |
|---|---|---|---|---|
| 2017 | 60 × 80 in Queen | – | – | Grand Design spec sheet |
| 2018 | 60 × 80 in Queen | – | – | Grand Design spec sheet |
Years not listed weren't published.
The 350M floorplan
Grand Design's 2017 350M floorplan.
Is this your 350M?
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2015 | Momentum 350M | 38' 9" | – |
| 2016 | Momentum 350M | 38'9" | – |
| 2017 | Momentum 350M | 38' 9" | – |
| 2018 | Momentum 350M | 38' 9" | – |
Other Momentum mattress sizes
Sources
- Grand Design (granddesignrv.com), archived copy: https://web.archive.org/web/20150509175939/http://www.granddesignrv.com:80/momentum-specs.php
- Grand Design (granddesignrv.com), archived copy: https://web.archive.org/web/20160402211848/http://www.granddesignrv.com:80/momentum-specs.php
- Grand Design (granddesignrv.com), archived copy: https://web.archive.org/web/20190817204546/https://www.granddesignrv.com/showroom/2018/toy-hauler/momentum/floorplans/350m
- Grand Design (granddesignrv.com), archived copy: https://web.archive.org/web/20170201002216/https://www.granddesignrv.com/showroom/2017/toy-hauler/momentum/specs
Questions
What size mattress is in the Grand Design Momentum 350M?
The main bed is 60 × 80 in (Grand Design spec sheet, 2018).