Top pick
RVMattress.comSignature Hybrid
- Hybrid
- 13.25 in thick
- Soft / Medium / Firm
Sleep Foundation: Best Mattress Overall Read review
$1,465Queen · list priceSee price
Keystone Cougar 316RLS 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 →Keystone spec page, 2027.
Mattresses in 60 × 80 in
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Best value
Mattress InsiderThe Sedona
- All-foam
- 5.5 in thick
- Firm
$36160" x 80" · list priceSee price
Reviewers' favorite
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
Best memory foam
Mattress InsiderElation Gel Foam
- Memory foam
- 6 in thick
- cushion firm
$45960" x 80" · list priceSee price
Best hybrid
RVMattress.comCopperFlex RV Hybrid
- Hybrid
- 10 in thick
- Medium-Firm
$799Queen · list priceSee price
Best all-foam
RVMattress.comPlank Firm
- All-foam
- 10 in thick
- Firm / Extra Firm
Mattress Clarity: Best RV Mattress for Heavy People Read review
$1,332Queen · list priceSee price
Reviewer pick
HelixHelix Midnight
- Hybrid
- 11.5 in thick
- Medium Feel
Sleep Foundation: Best Mattress for Side Sleepers Read review
$1,183Queen · list priceSee price
Reviewer pick
Mattress InsiderPark Meadow Encased Coil II
- Hybrid
- 8 in thick
- cushion-firm
Sleep Foundation: Best Mattress for Pressure Relief Read review
$66960" x 80" · list priceSee price
The Cougar bedroom. Measure the platform, not the old mattress, before you buy.
The 316RLS floorplan
Keystone's 2027 316RLS floorplan.
Is this your 316RLS?
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2021 | Cougar 316RLS | 35 ft 9 in | 6 |
| 2022 | Cougar 316RLS | 35 ft 9 in | 6 |
| 2023 | Cougar 316RLS | 35 ft 8 in | 6 |
| 2024 | Cougar 316RLS | 35 ft 8 in | 6 |
| 2025 | Cougar 316RLS | 35 ft 8 in | 6 |
| 2026 | Cougar 316RLS | 35 ft 8 in | 6 |
| 2027 | Cougar 316RLS | 35 ft 8 in | 6 |
Other Cougar mattress sizes
Sources
- Keystone (keystonerv.com): https://www.keystonerv.com/product/cougar/premium-fifth-wheels/floorplans/316RLS
Questions
What size mattress is in the Keystone Cougar 316RLS?
The main bed is 60 × 80 in (Keystone spec page, 2027).