Naturehike 3.6R Self-Inflating Sleeping Pad

The Naturehike 3.6R Self-Inflating Sleeping Pad is a premium choice for outdoor enthusiasts seeking comfort, warmth, and portability in a single lightweight solution. Designed with the needs of backpackers, hikers, and campers in mind, it combines advanced insulation technology with a user-friendly setup process. The key innovation lies in its high-elastic foam core, which draws air in automatically when the valve is opened, reducing setup time from minutes to seconds. Once inflated to 50–70% of full firmness, you can fine-tune the pressure with a few breaths.

With an R-value of 3.6, this pad performs reliably in cold conditions down to -5°C, making it suitable for use in early spring, late autumn, and even winter camping in mild climates. The insulation is particularly effective in preventing heat loss to the ground—a common issue when sleeping on cold surfaces. For extended winter trips or extreme cold below -5°C, it’s recommended to pair the pad with a foam underlay or upgrade to a higher R-value model.

The 20D nylon fabric with a TPU outer layer ensures the pad is both durable and waterproof. This construction resists tears, abrasions, and punctures from sharp rocks or branches, making it ideal for use on rough or uneven terrain. The material is also lightweight, contributing to the pad’s overall low weight.

The 3.5 cm thickness is carefully engineered to deliver optimized support without compromising packability. The foam core structure uses a unique pattern that evenly distributes body weight, reducing pressure points and preventing the feeling of sleeping on a mattress that’s too soft or too firm. Side sleepers will appreciate the balanced support, though it’s advised not to over-inflate the pad, as excessive pressure can reduce comfort and compromise the pad’s longevity.

The dual-layer valve system is a standout feature. The self-inflation valve allows air to enter automatically, while the deflation valve enables rapid air release—perfect for packing up quickly after a long day on the trail. For best results, store the pad with the valve open to prevent moisture buildup and maintain the core’s elasticity over time.

R-Value: 3.6

Temperature Rating: Down to -5°C (23°F)

Thickness: 3.5 cm (1.38 in)

Materials: 20D nylon fabric with TPU coating

Weight:

Mummy: 610 g

Envelope (Regular): 685 g

Envelope (Large): 935 g (33 oz)

Dimensions:

Mummy & Regular: 183 x 53 cm (72 x 20.9 in)

Large: 196 x 65 cm (77.2 x 25.6 in)

Pack Size: Fits into included storage bag (approx. 25 x 15 cm when packed)

Care Instructions: Store with valve open; avoid prolonged exposure to direct sunlight; clean with damp cloth and mild soap