Keystone Hideout 175LHS mattress size
Years 2015–2017Sold as HideoutLength 21' 5"
Bunk mattresses in 30 × 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.

RVMattress.comCopperFlex RV Hybrid
- Hybrid
- 10 in thick
- Medium-Firm

Mattress InsiderPark Meadow Encased Coil II
- Hybrid
- 8 in thick
- cushion-firm
Sleep Foundation: Best Mattress for Pressure Relief Read review
The 175LHS floorplan

Keystone's 2017 175LHS floorplan.
Is this your 175LHS?
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
| 2015 | Hideout 175LHS | 21' 0" | – |
| 2016 | Hideout 175LHS | 21' 0" | – |
| 2017 | Hideout 175LHS | 21' 5" | – |
Other Hideout mattress sizes
Questions
What size are the Keystone Hideout 175LHS bunk mattresses?
30 × 74 in (Keystone spec sheet, 2017).