Sea to Summit Ether Light XT Extreme Cold-Weather Sleeping Pad – Rectangular Regular (72 x 25 x 4 in)

Warmth and plush comfort in a cold-weather sleeping pad

For winter camps and shoulder-season adventures, a reliable sleeping surface is essential. The Sea to Summit Ether Light XT Extreme Cold-Weather Sleeping Pad blends substantial cushioning with purposeful insulation, helping you rest more soundly and wake ready for another day outdoors. The 4-inch profile, complemented by a 6.2 R-value, is designed to minimize heat loss and provide stable support on uneven ground, snow, or freezing ground surfaces. In the Regular size, the pad offers generous space for different sleeping styles without adding excessive bulk to your pack.

Key comfort and insulation features

• Thick air mattress with high loft fiberfill delivers a soft, supportive feel
• Reflective fabric layer helps minimize heat loss by radiating warmth back toward you
• Non-slip 30D/40D nylon face fabric provides durability and quiet performance against sleeping bags
• Single-layer Air Sprung Cell construction mimics a spring mattress for consistent support

Convenience and versatility on the go

• Multi-function valve enables fast inflation in a few breaths using the integrated Airstream Pumpsack
• One-way deflation and fine-tuning allow for quick, compact packing
• Includes a stuff sack, field repair kit, and PillowLock patches to secure a Sea to Summit pillow to the mat

Size, weight, and practical design

The rectangular Regular measures 72 x 25 x 4 inches and packs down to about 7.3 x 11 inches, with a weight near 2.1 pounds. Durable fabric, a soft surface, and an efficient packing footprint make it a practical choice for winter backpacking or car camping where comfort matters after a long day outside.

Real-world use and what you might notice

In field conditions, you may experience a warmer night thanks to the insulated layer and reflective fabric. The air-sprung construction distributes weight evenly over irregular ground, reducing pressure points and helping you settle into a restful position more quickly. The pad’s surface remains quiet and stable, which can contribute to a more peaceful night’s sleep. While we avoid guarantees, this pad is designed to be a dependable, weather-aware sleeping surface that supports your rest on cold ground across a range of environments.

Durability and included accessories

Built with a durable non-slip face fabric, the Ether Light XT is designed to withstand regular outdoor use. The included field repair kit supports on-trail tweaks, and PillowLock patches offer an easy way to secure a compatible Sea to Summit pillow for added comfort.