Keystone Cougar 301SAB mattress size
Years 2014–2015Sold as CougarLength 34' 0"
Bunk mattresses in 28 × 74 in
Some bunks have a rounded corner, so trace yours before a custom cut. A thicker bunk mattress takes headroom from the bunk above.

Mattress InsiderPark Meadow Encased Coil II
- Hybrid
- 8 in thick
- cushion-firm
Sleep Foundation: Best Mattress for Pressure Relief Read review
The 301SAB floorplan

Keystone's 2015 301SAB floorplan.
Is this your 301SAB?
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
| 2014 | Cougar 301SAB | 34' 0" | – |
| 2015 | Cougar 301SAB | 34' 0" | – |
Other Cougar mattress sizes
Questions
What size are the Keystone Cougar 301SAB bunk mattresses?
28 × 74 in (Keystone spec sheet, 2015).