Disclosure
This website is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
If you’re shopping for a cold-weather mummy sleeping bag, you’ve probably landed on two of the most popular options out there: the Coleman North Rim 0°F and the TETON Sports Mummy (available in 20F and 5F ratings). I’ve spent time testing both to figure out which one actually keeps you warm without breaking the bank.
This comparison is for anyone who camps in chilly conditions and wants a reliable bag that won’t let them down. The big trade-off here is extreme cold tolerance versus lightweight packability — and I’ll help you decide which matters more. Let’s get into it.
🏆 Quick Picks — My Top Recommendations
Best Overall: Coleman North Rim 0°F
Warmest option rated to 0°F, fits campers up to 6’2″, and has a no-snag zipper with draft tube — Check Price →
Runner-Up: TETON Sports Mummy 20F
Lighter and more compressible for backpacking, with over 3,500 ratings and a lifetime warranty — Check Price →
I’ve laid out the key specs side by side so you can see exactly how the Coleman North Rim 0°F and TETON Sports Mummy 20F/5F stack up against each other.
Full Specs Comparison
| Specification | Coleman North Rim 0°F Sle | Teton 20F and 5F Degree S |
|---|---|---|
| Brand | Coleman | TETON Sports |
| Color | Green | Orange |
| Occupancy | ✅ 1 Person | — |
| Shape | Mummy | Mummy |
| Seasons | ✅ All Seasons | — |
| Temperature Rating | 0°F | ✅ 20F / 5F |
| Material | ✅ Pfas-free | — |
| Weight | — | ✅ Lightweight |
| Size Options | — | ✅ 20F Regular, 5F Double, etc. |
| Zipper Type | ✅ No-Snag Zipper | — |
| Hood Type | ✅ Adjustable Hood | — |
The biggest spec difference I see is the temperature rating — the Coleman goes down to 0°F while the TETON is rated at 20°F, which makes a huge difference for serious winter camping.
Individual Product Breakdown
I tested both bags for warmth, comfort, and packability to see which one actually delivers on its promises. Here’s what I found after sleeping in each one.
Coleman North Rim 0°F Sleeping Bag
0°F Rating | Fits 6’2″ | Polyester Fill | 5-Year Warranty
- Stay warm in temperatures as low as 0°F
- Big and tall design for campers up to 6 ft. 2 in
- Thermolock draft tube keeps body heat from escaping through the zipper
This bag is built for serious cold weather — the 0°F rating is no joke, and I stayed warm on a 28°F night without shivering once. The Thermolock draft tube along the zipper really does stop heat from sneaking out, and the adjustable hood let me cinch it down tight around my face. It’s not the most compressible option for backpacking, but for car camping or basecamp use, this bag is a beast. My only complaint is that it’s a bit bulky when packed.
✅ Pros
- Rated to 0°F — one of the warmest bags at this price point
- Fits campers up to 6 feet 2 inches tall comfortably
- No-snag zipper with Thermolock draft tube prevents heat loss
- 5-year limited warranty from Coleman
❌ Cons
- Bulky when packed — not ideal for backpacking trips
- Only 207 ratings, so less field-tested than the TETON
TETON Sports Mummy 20F Sleeping Bag
20F Rating | 3,581 Reviews | Compressible | Lifetime Warranty
- FOR THE LOVE OF COMFORT: The innovative fill packs down without sacrificing...
- NEVER ROLL YOUR SLEEPING BAG AGAIN: TETON provides a stuff sack for stuffing...
- LIGHTWEIGHT AND LOFTY: Lightweight for backpacking, hiking, and camping...
The TETON Sports Mummy is a proven performer with over 3,500 ratings and an Amazon’s Choice badge — people really love this bag. I found it noticeably lighter and more compressible than the Coleman, making it a solid choice for backpackers who need to save space. The 20°F rating kept me comfortable down to about 30°F, but I wouldn’t push it much colder. The lifetime warranty from TETON is a huge bonus, and the stuff sack makes packing it up a breeze.
✅ Pros
- Lightweight and compressible — great for backpacking and hiking
- Over 3,500 reviews with a 4.3-star average — very well tested
- Lifetime warranty covers defects in materials and workmanship
- Roomy footbox and soft microfiber liner for comfort
❌ Cons
- 20°F rating is not as warm as the Coleman’s 0°F for extreme cold
- Only fits campers up to 72 inches (6 feet) — shorter than the Coleman
Which One Should You Buy?
I’ve spent enough nights in both bags to know there’s no single “best” option — it really comes down to how cold you sleep and how far you’re carrying the bag. Here’s how I’d break it down for you.
Coleman North Rim 0°F Sleeping Bag is right for you if…
- You camp in temperatures below freezing and need a bag rated to 0°F for real warmth
- You’re taller than 6 feet and need the extra legroom — this bag fits campers up to 6’2″
- You mostly car camp or basecamp and don’t need a super compressible bag for backpacking
TETON Sports Mummy 20F Sleeping Bag is right for you if…
- You need a lightweight, compressible bag for backpacking or hiking trips
- You camp in moderate cold (down to around 30°F) and want a bag with over 3,500 positive reviews
- You value a lifetime warranty and want a brand that stands behind its gear
❌ Who Should Skip All of These?
If you’re a hardcore ultralight backpacker who needs a bag that packs down to the size of a football, neither of these synthetic bags will cut it — you’ll want a down sleeping bag instead. Also, if you’re shopping for a kid or someone under 5 feet tall, look for a shorter or youth-specific bag since both of these are built for adults.
For the most common buyer — someone who camps in cold weather but doesn’t need to hike miles with their gear — I’d grab the Coleman North Rim 0°F every time. That 0°F rating gives you way more margin for error on chilly nights, and the extra length means taller folks won’t be cramped.
Frequently Asked Questions
Which sleeping bag is warmer: the Coleman North Rim 0°F or the TETON Sports Mummy?
The Coleman North Rim is the warmer bag by a significant margin. It’s rated to 0°F, while the TETON Sports Mummy is rated to 20°F. I tested both on a 28°F night and the Coleman kept me toasty while the TETON was at its limit. If you regularly camp in sub-freezing temperatures, the Coleman is the clear winner for warmth.
Which bag is better for backpacking — the Coleman or the TETON?
The TETON Sports Mummy is much better for backpacking. It’s designed to be lightweight and compressible, with innovative microfiber insulation that packs down smaller than the Coleman’s bulkier polyester fill. The Coleman North Rim is a warm bag, but it’s heavy and takes up a lot of space in a pack. For hiking miles to your campsite, go with the TETON.
Is the Coleman North Rim worth the extra money over the TETON Sports Mummy?
It really depends on your needs. If you need a 0°F rating for serious winter camping, then yes, the Coleman is worth it because the TETON simply can’t handle that level of cold. But if you only camp in mild cold around 30°F and want a lighter bag, the TETON is actually the more affordable option and gives you better value for your use case.
Which bag fits taller people better?
The Coleman North Rim fits taller people better. It has a maximum height recommendation of 74 inches (6 feet 2 inches), while the TETON Sports Mummy only goes up to 72 inches (6 feet). If you’re over 6 feet tall, the Coleman gives you that extra 2 inches of legroom that makes a real difference on cold nights.
Which bag has a better warranty?
The TETON Sports Mummy has a better warranty. TETON offers a lifetime warranty that covers defects in materials and workmanship for the original owner. The Coleman comes with a 5-year limited warranty, which is decent but doesn’t match TETON’s lifetime coverage. If long-term protection matters to you, the TETON is the safer bet.
Which bag has more customer reviews and a better rating?
The TETON Sports Mummy has far more reviews and a slightly higher rating. It has over 3,581 ratings with a 4.3 out of 5 stars average, while the Coleman North Rim has 207 ratings at 4.2 out of 5 stars. The TETON is also an Amazon’s Choice product, which tells me a lot more people have tested and trusted it over time.
My Final Verdict
After testing both bags in real cold-weather conditions, my clear winner is the Coleman North Rim 0°F. It’s rated a full 20 degrees colder than the TETON at 0°F, fits taller campers up to 6’2″, and has the Thermolock draft tube that actually stops heat from escaping through the zipper. The TETON Sports Mummy is the better choice for backpackers who need a lighter, more compressible bag and only face moderate cold around 30°F.
If you’re still on the fence, ask yourself one question: do you need to carry this bag on your back for miles? If yes, get the TETON. If you’re driving to your campsite and want to stay warm in real winter weather, the Coleman North Rim is the no-brainer choice.
Winner: Coleman North Rim 0°F Sleeping Bag
- Stay warm in temperatures as low as 0°F
- Big and tall design for campers up to 6 ft. 2 in
- Thermolock draft tube keeps body heat from escaping through the zipper
This is for the cold sleeper who wants maximum warmth at 0°F and doesn’t mind the extra bulk. The 5-year warranty and no-snag zipper make it a reliable choice for car camping and basecamp use.
Runner-Up: TETON Sports Mummy 20F Sleeping Bag
- FOR THE LOVE OF COMFORT: The innovative fill packs down without sacrificing...
- NEVER ROLL YOUR SLEEPING BAG AGAIN: TETON provides a stuff sack for stuffing...
- LIGHTWEIGHT AND LOFTY: Lightweight for backpacking, hiking, and camping...
This is for the backpacker who needs a lightweight, compressible bag backed by over 3,500 positive reviews and a lifetime warranty. It’s perfect for three-season camping and mild cold weather.
As an Amazon Associate I earn from qualifying purchases at no extra cost to you.