Sea to Summit Sleeping Mat

An R-value of 2.6 indicates this mat is best suited for three-season use, typically from late spring through early autumn. It provides enough insulation to keep you comfortable on cool ground, but it is not designed for freezing winter temperatures.

The mat uses open-cell foam inside that expands when you open the valve, drawing air in automatically. While it does most of the work on its own, you may want to add a few breaths of air at the end to reach your preferred firmness.

Yes, the silicone print creates friction between your sleeping bag and the mat surface. It is particularly effective if you tend to toss and turn or are camping on slightly uneven ground.

PillowLock is a series of hook-and-loop patches on the mat that secure a compatible Sea to Summit pillow in place. You will need a Sea to Summit pillow that features the matching attachment system to utilize this feature.

The 30D polyester balances weight savings with durability, making it ideal for backpacking where every ounce counts. While it is tough enough for standard tent floors, you should always clear your campsite of sharp rocks or sticks before laying it down to prevent punctures.

The valve is designed to allow air to flow out quickly while preventing it from rushing back in as you roll the mat up. This makes it significantly easier to compress the mat into a tight package compared to traditional screw valves.