After a long day on the track, the Sea to Summit Ether Light XR Insulated ASC Sleeping Mat - Grey (Regular) delivers proper comfort without the bulk. With 10 cm Air Sprung Cell construction, it provides plush, stable support in any sleeping position, while ThermalCore insulation with a suspended TRM layer reflects warmth back to you for dependable 3-season performance. Setup is quick and easy thanks to the Airstream pump integrated into the stuff sack and the high-airflow XPRESS valve, letting you inflate, fine-tune, and deflate with minimal fuss. Built with increased weld strength and durable 30/40D nylon with TPU lamination, it’s a reliable choice for fast-moving missions where sleep still matters.

Sea to Summit Ether Light XR Insulated Mat (Regular) – Key Features

• ThermalCore insulation: Suspended TRM layer reflects warmth back to the sleeper effectively.
• Extended 3-season warmth: ASTM-tested R-Value of 4.1 for cool to cold conditions.
• 10 cm Air Sprung Cell comfort: Plush, stable support across sleeping positions.
• Fast inflation and easy adjustment: XPRESS valve and pumpsack integrated into the stuff sack.
• Durable build: Increased weld strength for greater long-term reliability.
• PillowLock compatible: Included PillowLock patches help keep your Aeros Pillow in place.

Specifications – Ether Light XR Insulated ASC Sleeping Mat (Regular)

• Best Use: Backpacking, Thru-hiking, Bikepacking (Tapered)
• Comes With: Stuff sack with integrated pumpsack, PillowLock patches, repair kit
• Material(s): 30/40D nylon with TPU lamination, single-layer TRM reflective insulation
• R-Value (ASTM): 4.1
• Thickness: 10 cm (3.9 in)
• Weight: 470 g
• Stuff / Pump Sack Weight: 55 g
• Packed Weight: 525 g
• Packed Size: 20.5 x 11 x 11 cm
• Fits Up To Height: 183 cm