Sea To Summit Ether Light XT Insulated Inflatable Sleeping Pad

Product detailed description

The Sea To Summit Ether Light XT Insulated sleeping pad is another great product from this legendary Australian brand.

Comfort

At first glance, the sleeping pad stands out primarily for its thickness, which is an impressive 10 cm. This makes it one of the most comfortable sleeping pads on the market. Even heavier individuals need not worry about it sagging. In the regular size, the mat has a standard length of 183 cm but is wider than most classic mats. It measures a generous 55 cm at the shoulders and then tapers toward the feet. Weighing 490 grams, it ranks among the lighter, insulated mats in our lineup.

The foundation of the entire mat is durable 30D/40D nylon with an Air Sprung Cells™ chamber construction, consisting of dozens of interconnected chambers that function like springs. This construction perfectly distributes your weight and adapts to the contours of your body. A major advantage is the material’s internal antibacterial treatment, which prevents mold growth inside the mat caused by inflation.

Simple valve

As with its other mats, the manufacturer uses its patented valve here as well. It works flawlessly. Just flip open the cap and you can start inflating right away. Thanks to the internal membrane, air doesn’t escape during inflation. When you want to deflate the mat, simply flip open the other cap and the air is out in a matter of seconds. The valve is really simple, so there’s nothing to go wrong with it. Another advantage is that it’s flat, so it doesn’t get in the way.

Inflator bag

A great feature is the included inflator bag, which also serves as a storage bag for the mat. Here again, you can see that the manufacturer put a lot of thought into the design. Most Sea To Summit mats have been shipped with this bag since 2019. Simply snap the bag onto the valve, take a breath, and roll the mat to inflate it. It’s done after about 6 repetitions. This method easily prevents moist air from entering when inflating by mouth.

Pillow attachment system

The sleeping pad comes with self-adhesive Velcro patches used to secure the pillow. This easily prevents the pillow from moving, ensuring a comfortable sleep throughout the night. All pillows from Sea To Summit are compatible with this system.

Thermal resistance

This sleeping pad model is labeled "Insulated," which means it features Thermolite HL-1 synthetic insulation. This insulation is cleverly positioned "in the air," significantly reducing heat loss caused by airflow between your warm body and the cold ground. The thermal resistance value R is 3.2, making the Ether Light Insulated a sleeping pad suitable for regular three-season use. Since 2020, thermal resistance measurements have been standardized according to ASTM F3340-18, allowing heat loss values to be compared across different brands.

We also offer a summer version without insulation: Sea To Summit Ether Light XT. 

We recommend placing Tyvek under every inflatable sleeping pad, as it significantly reduces the risk of punctures.

Sea To Summit Ether Light XT Insulated:

• Weight: 490 g (Regular - separate sleeping pad).
• Packing bag/inflator - weight: 54 g.
• Dimensions: 183 x 55 x 10 cm (Regular).
• Pack size: 24 x 11 cm.
• Thermal resistance: R = 3.2 (ASTM F3340-18).
• Insulation: Thermolite HL-1.
• Material: 30D/40D nylon with antibacterial treatment.
• Inflates using the included bag.
• Pillow attachment system: The Pillow Lock™.
• Simple, patented valve that doesn’t get in the way.