Sea to Summit Camp SI Self-Inflating Sleeping Mat – Extra Thick, Insulated Foam Mat with Delta Core Technology for Durable, All-Season Camping Comfort

The Sea to Summit Camp SI (Self-Inflating) Sleeping Mat delivers reliable warmth and luxurious cushioning, making it ideal for campers who value comfort and durability. Designed with Delta Core horizontal foam coring, this mat minimizes weight and bulk without sacrificing support or insulation—perfect for car camping or base camp adventures. The durable 75D polyester surface resists abrasion, while the soft-touch top fabric adds next-to-skin comfort.

The Camp SI inflates easily using Sea to Summit’s multi-function valve, allowing quick self-inflation and easy fine-tuning of firmness. Whether you're sleeping on rocky ground or a cold forest floor, this thick, insulated mat provides a dependable night’s rest through all seasons.

Features:

• Self-Inflating Design – Simply open the valve and the high-quality PU foam core expands on its own, making setup quick and effortless.

• Delta Core Technology – Horizontal coring removes up to 40% of the foam, reducing weight and packed size without compromising comfort.

• Thick and Supportive – With an R-value of 4.2, the mat offers excellent insulation for cold-weather camping while maintaining plush comfort.

• Abrasion-Resistant Shell – Durable 75D polyester fabric withstands the wear and tear of rugged outdoor use.

• Compact When Packed – Rolls down easily for convenient storage and travel, making it suitable for backpacking or overland setups.

• One-Way Valve System – The multi-function valve allows for fast inflation, precise adjustment, and hassle-free deflation.

• Non-Slip Grip Print – Keeps your sleeping bag in place throughout the night, even if you move around.

• Season Versatility – Designed for all-season use, providing warmth in cooler temperatures and cushioning on hard ground.