Robens LightCore UL 3.1R  Sleeping Mat

ISPO Award-Winning Comfort for Ultralight Adventures

The Robens LightCore UL 3.1R Regular an Large are award-winning ultralight sleeping mat's designed for backpackers, thru-hikers, bikepackers, and outdoor adventurers who demand exceptional warmth and comfort without carrying unnecessary weight.

Weighing just 310g, the LightCore UL delivers an impressive warmth-to-weight ratio thanks to its innovative foil insulation technology. With an R-value of 3.1, it provides reliable insulation for spring, summer, and autumn adventures, keeping you comfortable in temperatures down to approximately -4°C while remaining remarkably compact in your pack.

The horizontal baffle construction contours naturally to the body, providing excellent support and stability throughout the night. Combined with Robens' soft-touch nylon fabric, the result is a sleeping mat that feels comfortable against the skin while maintaining the durability required for demanding outdoor use.

Inflation is quick and effortless thanks to the Robens Peak Valve, featuring one-way technology and high airflow performance. A lightweight pump sack is included to help inflate the mat efficiently while minimising moisture entering the insulation system.

Whether you're tackling long-distance trails, mountain adventures, or minimalist camping trips, the LightCore UL offers premium comfort in an exceptionally lightweight package.

Why You'll Love It

• ISPO Award Winner – Recognised for innovation and performance

• Exceptional Warmth-to-Weight Ratio – Foil insulation maximises thermal efficiency

• Ultralight Design – Weighs just 310g

• Three-Season Performance – R-Value 3.1 suitable for spring, summer and autumn use

• Comfortable 8cm Thickness – Excellent cushioning and support

• Horizontal Baffle Construction – Adapts naturally to your body

• Peak Valve Technology – Fast inflation and easy deflation

• Compact Pack Size – Packs down to just 21 x 8cm

• Pump Sack Included – Hygienic and efficient inflation

• PFAS-Free – Manufactured without intentionally added PFAS

Specifications

• Weight: 310g

• Dimensions: 183 x 53 x 8cm (191x61x8cm Large)

• Pack Size: 21 x 8cm (23x 10Cm Large)

• R-Value: 3.1

• Temperature Rating: Approx. -4°C

• Fabric: 15D 430T Ripstop Nylon with TPU Coating

• Insulation: Single Layer Foil Lining

• Valve: Robens Peak Valve

• Construction: Horizontal Baffles

• PFAS-Free: Yes

What's Included

• Robens LightCore UL 3.1R Sleeping Mat

• Lightweight Pump Sack

• Carry Bag

Perfect For

• Backpacking

• Thru-Hiking

• Bikepacking

• Fastpacking

• Wild Camping

• Trekking

• Adventure Racing

• Lightweight Travel

Award-Winning Performance, Minimal Weight

Combining impressive insulation, outstanding comfort and an exceptionally low pack weight, the Robens LightCore UL 3.1R is the perfect sleeping mat for adventurers looking to maximise warmth while minimising pack size.