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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25
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Description
Sierra Designs Nitro 35 800 Dridown Sleeping BagABOUT THE NITRO 35 Simple construction and a classic mummy bag shape are the hallmarks of one of our best selling sleeping bags for backpackers who put a premium on low weight, incredible comfort and straightforward tech. The Nitro sleeping bag is designed with durable nylon ripstop and insulated with 800 fill, hydrophobic DriDown to keep you toasty warm, even on damp nights. A draft collar seals in the heat when moving around, and sidewall baffles
ABOUT THE NITRO 35
Simple construction and a classic mummy bag shape are the hallmarks of one of our best-selling sleeping bags for backpackers who put a premium on low weight, incredible comfort and straightforward tech. The Nitro sleeping bag is designed with durable nylon ripstop and insulated with 800-fill, hydrophobic DriDown to keep you toasty warm, even on damp nights. A draft collar seals in the heat when moving around, and sidewall baffles prevent the down from shifting and causing cold spots, but our patented self-sealing foot vent provides relief to hot sleepers without the need to kick off the covers. Top it off with an anti-snag zipper to eliminate sleepy struggles and take greater comfort with this intuitive mummy bag.
FEATURES
- PFC-Free 800FP Dridown and 15d nylon fabrics / ultralight weight
- Patented Self Sealing foot vent / fast and easy ventilation
- Draft-dodger collar / helps prevent drafts 5" baffle spacing and side wall baffles / helps to keep down from shifting keeping you warmer
- Anti-snag zipper tracks / makes getting in and out easy
- Insulation: 800FP PFC-Free Dridown
- Shell Fabric: 15d nylon risptop
- Liner Fabric: 15d nylon risptop
REGULAR
- EN Limit Temp Rating: 27F / -3C
- EN Comfort Temp Rating: 37F / 3C
- Fill Weight: 9 oz / 255 g
- Minimum Weight: 1 lb 6 oz / 0.61 kg
- Fits Up To: 6' 0" / 183 cm
- Length: 78in / 198 cm
- Shoulder Circumference: 62" / 157 cm
- Hip Circumference: 56" / 142 cm
- Footbox Circumference: 40" / 102 cm
- Mesh Stoarge Bag Size (LxW): 20 x 12" / 51 x 31 cm
- Stuff Sack Size (L x W): 13 x 7" / 33 x 18cm
- SKU: 70604218
LONG
- EN Limit Temp Rating: 27F / -3C
- EN Comfort Temp Rating: 37F / 3C
- Fill Weight: 10.1 oz / 286 g
- Minimum Weight: 1 lb 8 oz / 0.67 kg
- Fits Up To: 6' 6" / 198 cm
- Length: 84in / 213 cm
- Shoulder Circumference: 64" / 163 cm
- Hip Circumference: 58" / 147 cm
- Footbox Circumference: 42" / 107 cm
- Mesh Stoarge Bag Size (LxW): 20 x 12" / 51 x 31 cm
- Stuff Sack Size (L x W): 13 x 7" / 33 x 18cm
- SKU: 7060421
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 4
Not as Firm as I had hoped
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
A good pillow.
However, there is quite a difference between the manufacturer's and my idea of "medium firmness". I found this pillow much softer than I had anticipated.
I'll have to go for firmer for my next purchase.
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Reviewed in the United States on July 28, 2025
★★★★★ 5
I admit when I was wrong.
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
3/29/26 - I took the pillows and put them in my dryer on steam refresh for the default 10 minute cycle.
OMG - they fluffed up and evened out to be soft and comfortable, no lumps whatsoever. If you like a soft pillow with some support, but not firm support, THIS is what you want. I am truly amazed.
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Previous review---They arrived in a vacuum seal bag. When you cut the bag and they inflate, they inflate lumpy like. Some areas are thick and some have to fill so, not very good. I am going to try washing them and drying them to see if they fluff up better.
Will post the results in a day or two.
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Reviewed in the United States on March 24, 2026
★★★★★ 3
Immediate neck and back pain
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
Nice full pillows that holds its shape, BUT was NOT good head and neck support. I noticed an immediate difference. From non existent to growing neck pain in the first night’s use, through the week.
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Reviewed in the United States on May 30, 2026
★★★★★ 5
Soft and comfortable
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
These pillows are incredibly soft and comfortable. They provide great support while still feeling plush and cozy. I’ve been sleeping much better since I started using them.
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Reviewed in the United States on June 2, 2026
★★★★★ 5
Comfortable, Hypoallergenic, and Great Value
Size: King (Pack of 2), Style: Soft, Configuration: Pillow
These pillows are a solid upgrade for everyday sleep. They’re soft but still provide enough support for both back and stomach sleeping, and the down-alternative fill is perfect if you’re sensitive to allergens. The microfiber cover feels smooth and well-made, and they fluff up nicely after decompressing. Overall, a comfortable and affordable set that gets the job done.
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Reviewed in the United States on March 22, 2026