Nemo Riff 30F Down Sleeping Bag

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Nemo’s Riff 30F offers a lightweight package of spaciousness, premium materials, and warmth. Its Spoon shape provides freedom of movement for side sleepers, while 800-fill hydrophobic down insulates to a -1 °C rating.

Nemo says: 

A pinnacle-performance 3-season 800 FP down bag, Riff offers a trim, athletic cut designed for side sleepers who crave space-saving packability. NEMO’s iconic Spoon™ bags are cut wider at the elbows and knees so campers can easily shift positions throughout the night, and the Ultralight Spoon silhouette used on Riff maintains that extra room while cutting in tighter at the feet and shoulders. The result is a sleeping bag vastly more comfortable than a mummy bag, but still impressively compact.

Our Verdict

For discerning backpackers who toss and turn at night, Nemo’s Riff 30F provides a luxurious combination of roominess, premium materials, and warmth in a svelte package. The key is Nemo’s ultralight Spoon shape with extra girth around the elbows and knees, which allows side sleepers to shift positions freely without feeling constricted.

At its core, top-quality 800-fill hydrophobic down provides furnace-level warmth to the 30°F rating. Nemo’s ThermoGill venting system offers extra ventilation options through double zippers without compromising warmth—the plush Blanket Fold draft collar seals in heat around your shoulders.

Other highlights include a waterproof/breathable foot box, ultralight 20D recycled ripstop fabrics with PFC-free DWR, and anti-snag zip tracks. Weighing under 2 lbs for the regular, it’s an exceptionally lightweight option for weight-conscious adventures.

Perfect for active side sleepers, the Riff 30F delivers Nemo’s legendary spacious sleep comfort with premium 800-fill-down insulation. It is an excellent investment for backpackers wanting a warm, ultralight sleeping oasis without feeling confined on three-season trips.

– Reviewed by Ultralight Outdoor Gear

Features

• Ultralight Spoon™ Shape – Adds room at the elbows and knees for side sleepers while maintaining a tailored silhouette for space-saving packability
• 800 FP Down Insulation – Premium RDS-certified down is treated with a PFAS-free, hydrophobic coating and provides excellent warmth, weight, and packability.
• Thermo Gill™ Vents – Featuring an interior and exterior zipper with a draft-blocking intermediate layer, each vent incrementally releases body heat without direct exposure to the cold.
  
• Blanket Fold™ Draft Collar – Updated, larger design dramatically blocks cold air or releases excess warmth and creates a cozy, tucked-in feel.
  
• Shape – Ultralight Spoon™A top-of-the-line, backountry-oriented silhouette. Trim and athletic for ounce and space-saving packability while still allowing for side-sleeping comfort.
  

Specifications

ISO Comfort:  39F / 4C 

ISO Limit: 29F / -2C

Regular:

• Weight: 857g
• Fill Weigh: 295 g 
• Fits up to: 6′ / 183 cm
  
• Shoulder Girth: 60 in / 152 cm
• Hip Girt: 53 in / 135 cm
• Knee Girt:  57 in / 145 cm
• Compressed Volume: 4 L

Long:

• Weight: 905g
• Fill Weigh: 325g 
• Fits up to: 6′ / 183 cm
  
• Shoulder Girth: 60 in / 152 cm
• Hip Girt: 53 in / 135 cm
• Knee Girt:  57 in / 145 cm
• Compressed Volume: 4.3 L

Material & Construction

• Temp – 30ºF /- 1ºC
  
• Fill – RDS-certified 800 FP down w/ PFAS-free DWR
• Shell – 100% post-consumer recycled polyester ripstop w/ PFAS-free DWR
• Lining – 100% post-consumer recycled polyester ripstop w/ PFAS-free DWR
• Hood & Footbox – 100% recycled waterproof/breathable polyester w/ PFAS-free DWR

Help & advice:

• The Ultimate Guide to Lightweight Sleeping Bags
• Time-Saver Guide to Choosing a Sleeping Bag
• Nemo Sleeping Bag Guide
• Recycled Content in Outdoor Gear
• Why is ‘PFC Free’ Important?
• Down Quality
• All About Down
• Hydrophobic Down
• Responsible Down Standard
• Ethical Down