NEMO RIFF MEN’S ENDLESS PROMISE® Sleeping Bag

Designed for demanding adventurers seeking three-season performance, NEMO's Riff™ Men's Endless Promise® embodies the perfect balance between warmth, lightness, and compactness. Filled with premium 800 Fill Power hydrophobic down, RDS certified and PFAS-free, this sleeping bag guarantees effective insulation while respecting animal welfare and the environment.

A cut designed for side sleepers

Thanks to its famous Ultralight Spoon® shape, which is wider at the elbows and knees, the Riff allows you to change position naturally during the night. More spacious than a classic mummy bag, it remains athletic and fitted at the shoulders and feet to optimize heat gain and compactness in your backpack. You'll enjoy exceptional comfort without compromising on weight or bulk.

Ultra-precise thermal regulation

The innovative new-generation Thermo Gill™ system, positioned on the chest, allows you to finely adjust the internal temperature without direct exposure to cold air. Each opening has a double zipper (inside and outside) with a draft-proof intermediate layer, offering several ventilation configurations. The redesigned Blanket Fold™ thermal collar acts as a real barrier against the cold when tucked in, or instantly releases excess heat when deployed.

Smart insulation and optimized construction

The baffles are strategically positioned: vertical on the torso to maximize comfort and horizontal below the waist to prevent down migration. The body-mapped design also incorporates a new 3D footbox for precise fit and optimized warmth at the feet. The hood and bottom of the bag are reinforced with recycled, PFAS-free water-repellent material to limit the impact of condensation in the tent.

Sustainable performance & environmental commitment

A flagship backcountry product, the Riff™ is part of the Endless Promise® range . Made from a single material, it is 100% recyclable at the end of its life: simply return it to NEMO for complete recycling. A responsible choice for your mountain adventures.

On the practical side, the anti-snag zipper protects the fabric, and two models with opposite closures can be joined together to create a double bag. It comes with a compression bag and a mesh storage cube.

ISO Comfort Temperature: 4°C
ISO Limit Temperature: 28°F
Filling: 295 g of 800 FP down
Maximum user height: 183 cm
Shoulder width: 152 cm
Hip width: 135 cm
Knee width: 145 cm

The Riff Men’s Endless Promise® is the ideal choice for your 3-season treks and bivouacs when you are looking for superior comfort, compactness, and environmental commitment.