Sea to Summit Ether Light XR Insulated Sleeping Pad - Large 78 x 25 x 4 in | Plush 10 cm Comfort

Sleep deeper on the trail with the Ether Light XR

After a full day on the trail, your camp mattress should fade into the background. The Ether Light XR eases you into sleep with 10 cm of plush, stable support. Its thoughtful design emphasizes ease and comfort, so you can unwind without sweating the setup. A built-in inflator in the stuff sack and a high‑flow XPRESS valve make inflation and deflation quick and intuitive, turning campsite setup into a short ritual rather than a chore.

ThermalCore insulation uses multiple TRM layers that are quiet and reflect back infrared energy toward you. This approach helps trap warmth while keeping weight low, with an ASTM-rated R-value of 4.1 for extended three-season use. In practice, that means a comfortable night in cool temps without an overly bulky pad to carry.

What makes Ether Light XR comfortable and efficient

• 10 cm thick Air Sprung Cell construction cushions hips, shoulders, and knees in any sleeping position
• ThermalCore insulation with reflective layers adds warmth without extra bulk
• R-value 4.1 supports three-season camping and alpine nights

The pad isn’t just about warmth; it’s designed to simplify your trip logistics. The XPRESS valve works with the integrated pumpsack so you can inflate, adjust for comfort, and deflate when you’re ready to pack up. When you’re trying to move quickly at dawn or end the day with minimal fuss, this combination keeps things simple and reliable.

• Integrated pumpsack in the stuff sack speeds setup and packing
• Valve design enhances airflow for quick, controlled inflation
• Compared to prior models, it offers a lighter weight and a smaller packed size

Practical versatility makes the Ether Light XR a strong choice for a wide range of backcountry scenarios. Its 78 x 25 inch footprint with 4 inch thickness gives a stable sleep surface on uneven ground, rock, or rooty campsites. Packable and lightweight, it travels well in a pannier or backpack, ready for a cool night on the trail or a late-season ascent. The combination of quiet insulation, plush feel, and an efficient inflation system helps you focus more on the views and less on the gear you’re wrestling with at camp.

Key specifications at a glance

• Thickness: 10 cm / 3.9 in
• Insulation: ThermalCore with reflective TRM layers
• R-value: 4.1 for three-season use
• Size: Large 78 x 25 x 4 inches
• Inflation: XPRESS valve with pumpsack integrated into the stuff sack