Thermodown 15 Sleeping Bag

Regular price $ 139.99

Starting at $46/mo with Affirm.

52 reviews

Stay warm and comfortable in our outstanding Thermodown 15 down backpacking sleeping bag. It's perfect for 3-season camping or backpacking, while being lightweight and compact enough to find a spot in your pack.

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Product Description

Stay warm and comfortable, no matter the weather, in our outstanding Thermodown 15 down sleeping bag. With excellent materials and performance, your search for a great sleeping bag ends here! 

Superior Insulation

Cold weather is no match for the 28 oz. of 600-fill power down insulation stuffed into every corner of this bag. You will stay toasty warm down to 15F (-10C). However, the added warmth does not compromise on size and weight. The bag packs down to just 11 x 7 inches and comes in at only 2 lb. 14 oz.


We've done our best to make this a great bag.

  • On warm nights, easily shed heat with the large two-way YKK zipper which opens from top and bottom. 
  • To prevent annoying snags, we've incorporated a wide zipper guard. 
  • To keep the heat in, a large draft collar automatically wraps around your neck. No need to deal with cumbersome drawstrings or scratchy velcro. The fully insulated and contoured hood can also be completely cinched down. 
  • A roomy trapezoidal foot box with extra insulation will keep your toes nice and warm. 


The bag comes with a durable compression sack allowing you to easily fit the bag into your pack. Between adventures, use the included mesh storage bag or hanging loops to properly store the bag.

Specs and Sizing

Short Size

  • Size: 74 inches by 31 inches, comfortably fits adults up to 5'6"
  • Weight: 2 pounds 12 ounces
  • Fill Weight: 26 ounces

Regular Size

  • Size: 80 inches by 31 inches, comfortably fits adults up to 6'0"
  • Weight: 2 pounds 14 ounces
  • Fill Weight: 28 ounces

Long Size

  • Size (Long): 86 inches by 33 inches, comfortably fits adults up to 6'6"
  • Weight (Long): 2 pounds 15 ounce
  • Fill Weight (Long): 28 ounces

Other Specifications

  • Packed Size: 11 inches long by 7 inches in diameter
  • Insulation Material: 600 fill-power 80/20 white duck down
  • Shell Material: lightweight and durable 20D ripstop nylon
  • Interior Lining: breathable 320T polyester pongee

How do I care for my new down sleeping bag?

  1. When you first receive the bag, run it in the dryer at the low-temperature or air fluff setting for about 10 minutes to loosen up the down that has been compressed during the shipping process.
  2. When heading out on the trail, use the included compression sack to protect the bag and also reduce the amount of space it takes up in your pack. Use care when stuffing the bag into the compression sack.
  3. Between trips, always store your bag using the included mesh storage sack or the hanging loops.
  4. Always wash your bag by hand or a front-load tumble washer. Never use a top load washer. Never use bleach.

For more detailed care instructions, including how to make repairs, please review our complete guide.

How do you determine the temperature rating?

We've put together an in-depth article on how we determine our temperature ratings. The guide also provides lots of helpful advice regarding making an informed decision.

How can I increase the temperature rating of my sleeping bag?

If you'd like to use our down bag at temperatures of 15 degrees and below, you may consider adding a sleeping bag liner to add about 10 degrees to the warmth rating. The Sea to Summit Thermolite Sleeping Bag Liner is a great option.

We offer three shipping services within the United States:

  • Standard Shipping = 3-5 Day Ground Shipping
  • Expedited Shipping = 2-3 Day Express Shipping
  • Priority Shipping = 1-2 Day Express Shipping

Do you ship outside of the United States?

Yes, we ship to all of Canada, Europe, Australia, New Zealand, and Japan.

All international orders are shipped Duties Paid. This means that all import taxes and duties are prepaid. No additional fees will be collected from the customer.

Canadian orders are shipped via a 7-10 day Economy Service. Orders to Europe, Australia, New Zealand, and Japan are shipped via a 10-15 day Economy Service. All international shipments are fully tracked from door-to-door.

If you're outside of our shipping area, we are not able to accommodate direct shipments to you. However, some of our customers have successfully used 3rd party international forwarding services.

We offer 30 days to accommodate any returns or exchanges of non-defective products. In some cases, we can accommodate returns and exchanges past 30 days, but these will be decided on a case-by-case basis.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

If you've purchased a tent or tarp and would like to set it up in your backyard, please do so on a dry, clear day to keep the tent/tarp as clean as possible. Pitch the tent/tarp on dry grass if possible and use other stakes if you have them available. This will keep the tent/tarp and stakes in an unused condition to facilitate a return.

Once your return is received and inspected, we will issue your refund and you will be notified via email. When a refund is processed, a credit will automatically be applied to your original method of payment. Please allow 2-5 business days for the credit to appear.

Where do I ship my return?

To return or exchange your product, please mail it to:

Paria Outdoor Products
Attn: Returns or Exchanges
PO Box 201328
Denver, CO 80220

You will be responsible for paying the return shipping costs. Shipping costs are also non-refundable. If you receive a refund, the initial cost of shipping (if any) will be deducted from your refund.

If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We can’t guarantee that we will receive your returned item.

All of our products come with a limited lifetime warranty against manufacturer defects. If there is a problem with your gear due to manufacturing, we will replace it free of charge, no questions asked. If you have any concerns about your product, please contact us at:

When contacting us for a warranty claim, please include:

  • The specific product, including size or length
  • Your original order number
  • Your current shipping address

We pride ourselves on our courteous and responsive customer service. We'll do our best to make sure all of our customers are happy with their purchase.

Here’s what others think

Customer Reviews
4.9 Based on 52 Reviews
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Bryan S.
United States United States
Incredible bag

I bought this bag way back in 2017 as a replacement for a 12 year old Mountain Hardwear bag. I didn't want to spend a lot but needed high end performance and features, I found this bag and decided to give it a shot. Fast forward 3 years and I can't say enough good things about it. I've used it in every condition imaginable from sleeping on top of it in the summer heat to near zero backcountry bivy excursions and it's outperformed it's value many times over. For the money you get a fairly light down bag that compresses pretty well and is made of durable materials. I've slept comfortably (with a liner) in temps well below the 15 degree rating and even got to test the waterproofing when my dog couldn't hold it one night and peed on it. The only downside is that it does bleed some down pretty regularly, but every piece of down equipment that I own bleeds some of it's feathers. If you're in the market for a new bag, just buy this one already and use the money you'll save on adventures.

Paria Outdoor Products Thermodown 15 Sleeping Bag Review
John B.
United States United States
Thumbs up

Have not put the temp rating to use yet, but my wife will be using it for hunting season. Good quality out of the box and quick shipping!

Thomas W.
United States United States
Excellent bag

I have used it twice and it has been nice. Feels like great quality. Warm. Packs into a small space for backpacking.

tomoyuki s.
Japan Japan


John W.
United States United States
Almost too warm

Great quality product with an affordable price. Now deciding on which other new products to buy. Your walking poles two years old are amazing at half the cost.

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