Search  for anything...

Nemo Sonic 800-Fill Down Sleeping Bag

  • Based on 31 reviews
Condition: New
Checking for product changes
$499.95 Why this price?

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term with PayTomorrow
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 1 left in stock, order soon!
Fulfilled by ILKone

Arrives Nov 19 – Nov 26
Order within 8 hours and 54 seconds
Available payment plans shown during checkout

Size: Short


Style: 0 Degree


Features

  • Award-winning design allows for temperature regulation in variable mountain climates
  • Adjustable Thermo Gills vent body heat at your core without letting cold air rush in
  • Stretch construction at the knees allows side sleeping
  • Overstuffed with 800 FP hydrophobic down that is 100% Responsible Down Standard (RDS) Certified ensuring humane treatment and traceability throughout the supply chain
  • Minimum Weight: 2lb 14oz; Temp Rating: 0F

Description

The Backpacker Editor’s Choice Award Winning Sonic has been praised as the only bag you really need from -20 to 40 degrees. Now updated for 2019 with a redesigned draft collar and draft tubes to create a secure seal against cold air; overstuffed 800FP hydrophobic, RDS certified down; and an updated profile and shaped footbox, the Sonic continues to rock out as the King of Comfort from basecamp to summit. The contoured hood with drawstring cord creates maxiumum thermal efficiency, and stretch construction at the knees allows side sleeping. Toester footbox is tailored for foot comfort, waterproof/breathable, and includes a layer of synthetic insulation to reduce cold spots.


Department ‏ : ‎ Mens


Date First Available ‏ : ‎ January 15, 2019


Manufacturer ‏ : ‎ Nemo


Best Sellers Rank: #228,012 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #393 in Camping Sleeping Bags


#393 in Camping Sleeping Bags:


Customer Reviews: 4.2 out of 5 stars 31 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 19 – Nov 26

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Fantastic sleeping bag
Size: Regular Style: -20 Degree
Took the -20 bag on a winter camping trip in windy single digit weather in the White Mountains. I stayed completely warm inside...I actually had to shed down to a tee and shorts because it was so toasty. The bag packs down small, is light, and is designed well. Great bag and great local gear brand, couldn't recommend more! ... show more
Reviewed in the United States on February 6, 2021 by Wesley Fletcher

  • Great so far.
Size: REG Style: 0 Degree
0 degree 850 fill model. Used for a week in Arizona high desert. No disappointments at all. I was comfortable in just my skivvies in temperatures from 25 to 35 degrees. 35 is probably about the upper limit without sweating.
Reviewed in the United States on March 29, 2020 by Alexander Supertramp

  • Excellent 4 season bag
I live in Summit County Colorado and enjoy winter camping so i don't have any interest on wasting money on a hack sleeping bag that doesn't deliver. This bag does not disappoint. I bought the -20 regular and its exactly what i needed when combined with a four season tent. This is a mummy bag that has twice the foot room of any other mummy out there which is a must for me. The thermal vents are genius and actually give it nice range if it warms up. Im 5'11" and it fits me perfectly. If you're 6'+, get the long. Its pretty pricey but i think its worth it if youre at altitude looking to not freeze you're bits off. ... show more
Reviewed in the United States on August 17, 2019 by Andrew Christy

  • Amazing bag
Size: REG Style: 0 Degree
Man this thing is comfortable. I don’t really go anywhere down to zero degrees, maybe in the mid 30s is all I need and this is great. Of course you need to add 10 to 20 degrees to the ratings so this is really like a 20 degree bag given the gills don’t have down insulation in them. I like the hood but I just stuff a pillow inside it and lay on top. Got the long model so it was pretty expensive but if you can find them on sale go for it, I paid about 460. But once cry once. I appreciate the storage mesh bag and the nice compression sack. And the water PROOF footbox! My one gripe is the zipper can be tough to put back together if you unzip it all the way and separate it. I like how comfy this bag is around the knees and legs too, less tight than a normal mummy bag. ... show more
Reviewed in the United States on April 22, 2021 by review

  • Not cost effective
Size: Long Style: 0 Degree
The sonic 0 degree bag is well designed, comfortable and packs well but has not enough fill to stay warm at 0 degrees. In short it's not worth the asking price as is. As for improvements, I'd say use 850 fill down of an amount in line with a iso transfer/comfort rating of 0 degrees. Also it should be ISO tested and advertised. Obviously if you buy a sleeping bag for any temp, you want to be comfortable at that temperature not just survive at that temp. ... show more
Reviewed in the United States on September 12, 2020 by Liam McGough

Can't find a product?

Find it on Amazon first, then paste the link below.