Mat Pinguin Trion R4 Ultralight Year-Round Inflatable Sleeping Pad

Product detailed description

Ultralight Gear Without Compromise

The Trion R4 is an inflatable sleeping pad designed for adventurers who want to minimize pack weight without sacrificing comfort or thermal performance. Thanks to its optimized construction, lightweight materials, and an R-value of 4, it offers an ideal balance of low weight, comfort, and year-round usability.

Year-Round Insulation with TRF Technology

Inside the sleeping pad, TRF (Thermo Reflective Foil) layers help reflect body heat back toward the user, reducing heat loss during the night. Combined with the integrated insulation layer, the pad achieves an R-value of 4, providing reliable protection from cold ground throughout the year.

Comfortable 9 cm Thickness

Despite its exceptionally low weight, the Trion R4 features a 9 cm thick air-cushioned construction. It effectively smooths out uneven terrain and separates the body from the ground, contributing to better sleep quality and improved recovery during multi-day adventures.

Mummy Shape for Weight Savings

The tapered mummy shape helps minimize both material usage and the amount of air required for inflation. The pad narrows to just 44 cm at its foot end, contributing to the exceptionally low weight of only 510 g without significantly compromising sleeping comfort.

Low Weight and Compact Packed Size

Weighing just 510 g, the Trion R4 ranks among the lightest insulated sleeping pads in its category. Packed down to only 9 × 23 cm, it leaves more room in your backpack or bikepacking bags for the rest of your gear.

Lightweight and Durable Materials

Both the top and bottom layers are made from 20D Nylon RipStop TPU. The RipStop structure helps prevent small tears or punctures from spreading, while the TPU lamination ensures airtightness and long-term durability. The result is an optimal combination of low weight, durability, and reliable performance.

Practical DLF Valve

The sleeping pad features a flat dual-layer DLF valve with a one-way check valve.

When the upper valve cap is opened, the pad can be inflated easily without air escaping back out. By gently pressing the check valve, the internal pressure can be adjusted continuously to achieve the desired level of firmness. Opening the second valve layer fully opens the valve, allowing the pad to be quickly deflated and packed away.

Package Includes

• Trion R4 inflatable sleeping pad
• Stuff sack with integrated inflation bag