Sea to Summit Ether Light XR Insulated Air Sleeping Pad

After a long day on the trail, the Sea to Summit Ether Light XR Insulated Air Sleeping Pad provides a plush, stable sleeping surface without taking up excessive space in your pack. Its 10cm / 3.94in thickness, efficient insulation system and compact packed dimensions make it suitable for backpacking, thru-hiking, bikepacking, hunting and comfort-focused camping.

ThermalCore Insulation

ThermalCore technology uses a suspended TRM layer to reflect radiant warmth toward the sleeper. With an ASTM-tested R-Value of 4.1, the mat is designed for extended three-season use while maintaining a relatively low weight and compact packed size.

10cm Air Sprung Cell Comfort

The Air Sprung Cell construction allows individual cells to adapt to the sleeper’s body and movement. At 10cm thick, the mat provides cushioned support and stable comfort for back, side and combination sleeping positions.

Quick Inflation and Deflation

The included stuff sack features an integrated pump sack, allowing the mat to be inflated without repeatedly blowing directly into the valve. The high-airflow XPRESS valve supports three functions:

• Rapid inflation
• Fine pressure adjustment
• Fast deflation

Compact for Backcountry Travel

The Ether Light XR is designed to balance sleeping comfort, insulation and packability. Tapered versions are well suited to weight-conscious backpacking, thru-hiking and bikepacking, while rectangular versions provide additional space for comfort backpacking and hunting trips.

Secure Pillow Placement

Integrated PillowLock System patches are compatible with Sea to Summit Aeros pillows, helping prevent the pillow from sliding away during the night.

Durable Construction

Increased weld strength improves long-term reliability during repeated inflation, packing and backcountry use. A repair kit is included for field maintenance.

Key Features

• ASTM-tested R-Value: 4.1
• Extended three-season insulation
• 10cm / 3.94in thick sleeping surface
• ThermalCore insulation with suspended TRM layer
• Plush Air Sprung Cell construction
• High-airflow XPRESS valve
• Integrated pump sack inside the stuff sack
• PillowLock System patches
• Increased weld strength
• Compact packed dimensions
• Five size and shape options
• Repair kit included

Size Specifications

Best Use

Tapered Models: Backpacking, thru-hiking and bikepacking

Rectangular Models: Comfort backpacking and hunting