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The Lifesystems Sleep Mat Lite Large is designed for backpackers, trekkers, and multi-day expedition campers who prioritize warmth and weight management. It provides a significant boost to sleeping comfort through its 7 cm thick air chambers and integrated Heatshield technology, though its specialized valve system requires a brief learning curve for first-time users.
| Material | Nylon |
|---|---|
| Model Part Number | 42343 |
| Brand | Lifesystems |
The Sleep Mat Lite has an R-value of 4.4, making it suitable for three-season and light winter use.
Yes, the storage bag is specifically designed to function as an inflation pump.
The mat is 7 cm thick when fully inflated.
While it is possible, using the included pump bag is recommended to prevent moisture buildup inside the air chambers, which can degrade the internal reflective material.
Switch the valve to the rapid-deflation mode, fold the mat in thirds lengthwise, and roll it tightly toward the valve to expel all remaining air.
Ensure the duo-vent valve is securely pushed into the 'closed' or 'one-way' position. Check for small punctures in the nylon surface.
Ensure the connection between the pump bag sleeve and the valve is airtight and that you are allowing the bag to fully expand with air before compressing it.
To set up the mat, open the inflation vent on the duo-vent valve and attach the pump bag. Ensure the seal is airtight, then perform 3-5 full cycles of the pump bag to inflate the mat to your preferred firmness. For deflation, engage the rapid-deflation setting on the valve and fold the mat in thirds to remove excess air before rolling it tightly. Store the mat in a cool, dry place away from direct sunlight to prevent fabric degradation. Clean the nylon surface using a mild soap and a damp cloth; avoid abrasive sponges or harsh chemical solvents that could damage the water-resistant coating.
