The Therm-a-Rest BaseCamp Sleeping Pad is a classic in the world of self-inflating mattresses. Designed for campers who prioritise comfort over ultralight packability, it’s a go-to choice for car camping, basecamp setups, and short hiking tours where weight isn’t the limiting factor. With a 6.0 R-value, 2-inch foam thickness, and rugged polyester shell, the BaseCamp offers reliable insulation and support in all but the most extreme conditions.
Build Quality and Materials
The BaseCamp uses solid open-cell thermal foam encased in a 75D polyester shell, offering a balance of durability and softness. The foam core expands when unpacked, drawing in air through the WingLock valve, which allows for one-way inflation and rapid deflation.
Key construction features:
- Thickness: 2 inches (5 cm) for consistent support and insulation
- Fabric: 75D polyester top and bottom for abrasion resistance
- Valve: WingLock system with toggling wings for directional airflow
- Sizes: Available in Regular (72×20 in), Large (77×25 in), and XL (77×30 in)
The pad is made in the USA using domestic and global materials, and backed by Therm-a-Rest’s limited lifetime warranty, reinforcing its reputation for longevity.
Comfort and Support
Comfort is where the BaseCamp excels. The foam core provides a stable, cushioned surface that adapts well to side sleepers, back sleepers, and those who shift positions during the night. Unlike air-only pads, the foam resists bottoming out and maintains consistent loft across the pad’s surface.
Users report:
- No ground feel, even on uneven terrain
- Minimal noise during movement
- Firmness adjustability by adding or releasing air
The pad’s rectangular shape and generous sizing options make it ideal for taller users or those who prefer more room to sprawl. While not as plush as 4-inch luxury pads, the BaseCamp strikes a solid balance between comfort and packability.
Insulation and R-Value
With a 6.0 R-value, the BaseCamp is rated for year-round use, including cold-weather camping. The foam core traps heat effectively, and the pad’s thickness prevents conductive heat loss to the ground.
Therm-a-Rest’s R-value ratings follow the ASTM standard, ensuring consistency across brands. Compared to ultralight pads with R-values between 2.0 and 4.5, the BaseCamp offers significantly better insulation—making it suitable for shoulder seasons and winter use when paired with an appropriate sleeping bag.
Usability and Setup
The WingLock valve is a standout feature. It inflates the pad three times faster than traditional valves and allows for micro-adjustments during inflation. Deflation is equally efficient, with the valve opening wide for rapid air release.
Setup process:
- Unroll the pad and open the valve
- Allow 5–15 minutes for self-inflation
- Top off with a few breaths or pump sack if needed
- Close the valve and adjust firmness
Packing down is straightforward, though the pad remains bulkier than air-only models. The included stuff sack is PFAS-free and water-resistant, offering protection during transport.
Weight and Packability
Weight varies by size:
- Regular: 2 lb 8 oz (1.14 kg)
- Large: 3 lb 6 oz (1.53 kg)
- XL: 4 lb (1.82 kg)
Packed dimensions:
- Regular: 21 x 7 in
- Large: 26 x 7.5 in
- XL: 31 x 7.5 in
While not suitable for ultralight backpacking, the BaseCamp is ideal for car camping, overlanding, and short hikes where comfort outweighs weight concerns.
Durability and Warranty
Therm-a-Rest pads are known for their long-term reliability. The BaseCamp’s foam core resists compression over time, and the polyester shell withstands abrasion and moisture. Users report 10+ years of use with proper care.
Maintenance tips:
- Store unrolled with valve open
- Avoid breath inflation in freezing conditions
- Clean with mild soap and water
- Use patch kits for punctures
The pad is covered by a limited lifetime warranty, and replacement parts (valves, stuff sacks) are readily available.
Comparison Chart: BaseCamp vs Similar Pads
| Feature | Therm-a-Rest BaseCamp | Exped MegaMat 10 | Sea to Summit Comfort Plus SI | Nemo Roamer XL |
|---|---|---|---|---|
| Type | Self-inflating foam | Self-inflating foam | Self-inflating foam | Air + foam hybrid |
| R-Value | 6.0 | 8.1 | 4.1 | 6.0 |
| Thickness | 2 in (5 cm) | 4 in (10 cm) | 3 in (7.6 cm) | 4 in (10 cm) |
| Weight (Regular) | 2 lb 8 oz | 5 lb 13 oz | 2 lb 14 oz | 5 lb 8 oz |
| Packed Size | 21 x 7 in | 31 x 11 in | 27 x 8 in | 30 x 10 in |
| Valve Type | WingLock | Exped FlatValve | Multi-function valve | Lay-flat valve |
| Best Use | Car camping, basecamp | Luxury camping, glamping | 3-season camping | Cold-weather car camping |
| Price Range (UK) | £93–£135 | £180–£230 | £120–£160 | £200–£250 |
Value and Pricing
The BaseCamp retails between £93 and £135, depending on size and retailer. Compared to luxury pads like the Exped MegaMat or Nemo Roamer, it offers:
- Better portability
- Comparable insulation
- Lower price point
For campers seeking comfort, warmth, and reliability without the bulk or cost of premium pads, the BaseCamp delivers excellent value.
Final Verdict
The Therm-a-Rest BaseCamp Sleeping Pad is a dependable, all-season mattress that prioritizes comfort and warmth for frontcountry adventures. Its self-inflating foam core, high R-value, and durable build make it a top choice for car campers, basecamp setups, and cold-weather outings.
While it’s not suited for ultralight backpacking, it excels in scenarios where sleep quality matters more than pack weight. With a proven track record, thoughtful design, and competitive pricing, the BaseCamp remains a cornerstone in Therm-a-Rest’s lineup—and a smart investment for campers who value comfort and durability.
