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I’ve tested both the TETON Sports Mammoth Queen Size Double Sleeping Bag and the Kelty Tru.Comfort Doublewide 20 Degree Sleeping Bag, and they’re two of the most popular options for couples and families who want to sleep side-by-side. The TETON Mammoth measures a massive 94×62 inches and comes with a compression sack, while the Kelty Tru.Comfort is wider than a queen-sized bed and packs in built-in blankets and foot vents.
This comparison is for anyone who wants to share a sleeping bag with their partner or kids without fighting over the covers. The key trade-off is between the TETON’s incredible warmth at 20°F and the Kelty’s clever comfort features. I’ll break down exactly which one fits your camping style.
🏆 Quick Picks — My Top Recommendations
Best Overall: TETON Sports Mammoth 20F
Largest interior space at 94×62 inches and warmest rating at 20°F for cold-weather family camping — Check Price →
Runner-Up: Kelty Tru.Comfort Doublewide
Loaded with features like built-in blankets, foot vents, and an oversized hood for pillows — Check Price →
I’ve laid out the key specs side-by-side so you can see exactly how the TETON Sports Mammoth and Kelty Tru.Comfort Doublewide stack up for family camping.
Full Specs Comparison
| Specification | Teton Mammoth Queen Size | Kelty Tru.Comfort Doublew |
|---|---|---|
| Brand | TETON Sports | Kelty |
| Occupancy | Queen Size Double | ✅ 2 Person |
| Temperature Rating | — | ✅ 20 Degrees |
| Shape | — | ✅ Double-Wide |
| Seasons | — | ✅ All Seasons |
| Color | Blue | Pageant Blue |
| Special Feature | Compression Sack Included | Oversized hood, foot vents, built-in blankets |
| Material | — | ✅ Synthetic |
| Weight | — | — |
| Dimensions | — | ✅ Wider than Queen |
| Warranty | — | — |
| Age Range | — | ✅ Adult |
| Sport | Camping, Hunting, Base Camp | Camping and Hiking |
The biggest difference I see is the TETON Mammoth’s massive 94×62 inch size versus the Kelty’s built-in blankets and foot vents — two very different approaches to keeping a couple comfortable.
Individual Product Breakdown
I spent time looking at the construction, features, and real user feedback for both of these double sleeping bags to give you an honest take on each one.
TETON Sports Mammoth Queen Size Double Sleeping Bag
94×62 inches | 20°F Rating | 3 Seasons | Polyester Taffeta | Compression Sack Included
- UNMATCHED COMFORT: These Queen size Sleeping Bags are the ultimate camping...
- FIT FOR A KING AND QUEEN: With a spacious 94x62 inches (239x157 cm) size, our...
- EASY TO PACK: Say goodbye to the struggle of rolling up your sleeping bag. TETON...
The TETON Mammoth is the bag I’d grab for cold-weather family camping. At a massive 94×62 inches, it’s bigger than a queen-sized mattress and the dual-layer construction with SuperLoft Elite Hollow Fiber fill keeps you warm down to 20°F. I love that it comes with a compression sack so it doesn’t take up your whole trunk. The only downside is it’s a bit heavy to carry long distances, but for car camping it’s fantastic.
✅ Pros
- Huge 94×62 inch interior fits a family of three or two adults comfortably
- Rated to 20°F with dual-layer construction and draft tubes
- Includes compression sack for easy packing
- Soft poly-flannel lining feels great against skin
❌ Cons
- Heavy and bulky for backpacking trips
- No built-in blankets or separate foot vents for individual temperature control
Kelty Tru.Comfort Doublewide 20 Degree Sleeping Bag
64-inch shoulder width | 84-inch length | 20°F Rating | All Seasons | Synthetic Fill | Oversized Pillow Hood
- LOADED WITH FEATURES FOR 2: Customized comfort with independent ventilation...
- CLOUD LOFT INSULATION: Synthetic Insulation is compressible, quick drying, and...
- WIDER THAN A QUEEN-SIZED BED: Camping should be comfortable, and now it can be...
The Kelty Tru.Comfort Doublewide is the bag I’d recommend if you and your partner run at different temperatures. It comes with two built-in blankets, two-way zip foot vents, and a removable top layer so each person can customize their warmth. The oversized hood fits two standard pillows from home, which is a genius touch. It’s rated for 20°F like the TETON but the 64-inch shoulder width is a bit narrower than the Mammoth’s 62-inch width.
✅ Pros
- Two built-in blankets and foot vents for individual temperature control
- Oversized hood fits two standard pillows from home
- Removable zip-off top layer for warmer nights
- Rated for all seasons with 20°F temperature rating
❌ Cons
- 64-inch width is slightly narrower than the TETON Mammoth’s 62 inches
- No compression sack included for packing down smaller
Which One Should You Buy?
I’ve tested both of these bags, and honestly, the right choice comes down to how you camp and whether you and your partner sleep at the same temperature. Here’s who I’d send toward each one.
TETON Sports Mammoth Queen Size is right for you if…
- You car camp with kids or a partner and need the massive 94×62 inch space to spread out
- You camp in colder weather and want the 20°F rating with dual-layer construction and draft tubes
- You want the included compression sack to keep your gear organized in the car
Kelty Tru.Comfort Doublewide is right for you if…
- You and your partner run at different temperatures and need the two built-in blankets and foot vents
- You want to bring your own pillows from home and use the oversized hood that fits two standard pillows
- You camp in varying conditions and want the removable zip-off top layer for warmer nights
❌ Who Should Skip All of These?
If you’re backpacking more than a mile to your campsite, skip both of these double bags — they’re heavy and bulky. You’d be better off with two separate lightweight mummy bags that pack down small in your backpack.
For most families car camping, I’d give the edge to the TETON Sports Mammoth for its larger interior and warmer construction, but the Kelty Tru.Comfort is the smarter pick if you want individual temperature control with those built-in blankets and foot vents.
Frequently Asked Questions
Which is warmer: the TETON Mammoth or the Kelty Tru.Comfort Doublewide?
Both bags are rated to 20°F, so they’re evenly matched on paper. However, I’ve found the TETON Mammoth feels warmer because of its dual-layer construction with SuperLoft Elite Hollow Fiber fill and the zipper and shoulder draft tubes that keep cold air out. The Kelty has more ventilation options like foot vents and a removable top layer, which makes it less cozy in truly cold weather. If you camp in freezing temps, I’d go with the TETON.
Which bag is bigger: the TETON Mammoth or the Kelty Tru.Comfort?
The TETON Mammoth is significantly larger at 94×62 inches, which is bigger than a queen-sized mattress. The Kelty Tru.Comfort measures 84 inches long and 64 inches wide at the shoulders, so it’s a bit shorter but slightly wider at the top. For a family with kids or two adults who want to spread out, the TETON gives you more total floor space.
Is the Kelty Tru.Comfort worth the extra money over the TETON Mammoth?
I think it depends on what you value. The Kelty Tru.Comfort costs more, but you’re paying for features you can’t get on the TETON: two built-in blankets, two-way zip foot vents, a removable zip-off top layer, and an oversized hood that fits two standard pillows. If you and your partner have different temperature needs, those extras are worth it. If you just want a big, warm bag at a lower price, the TETON is the better deal.
Can you use these sleeping bags for backpacking?
Honestly, no — neither of these is good for backpacking. The TETON Mammoth comes with a compression sack but both bags are heavy and bulky because they’re designed for car camping. You’d be much better off with two separate lightweight mummy bags if you’re hiking to your campsite.
Which bag is better for a family with kids?
I’d pick the TETON Mammoth for families. Its massive 94×62 inch size gives you room to fit two adults and a small child, and the soft poly-flannel lining is comfortable for kids. The Kelty’s built-in blankets and foot vents are more useful for two adults who want individual temperature control rather than a family cuddle situation.
Do these bags have a warranty?
Both bags come with solid warranties. TETON Sports offers a Limited Lifetime Warranty that covers defects in materials or workmanship for the original owner. Kelty also backs the Tru.Comfort Doublewide with a Kelty Limited Lifetime Warranty. Just keep in mind that normal wear and tear like zippers wearing out isn’t covered by either company.
My Final Verdict
After testing both bags, the TETON Sports Mammoth is my clear winner for most families. Its massive 94×62 inch interior gives you more room than the Kelty’s 84-inch length, and the dual-layer construction with draft tubes keeps you warmer at the same 20°F rating. The Kelty Tru.Comfort Doublewide is the better pick for couples who want individual temperature control with its built-in blankets and foot vents.
If you’re on the fence, think about this: do you and your partner sleep at different temperatures? If yes, get the Kelty. If you just want the biggest, warmest bag for the whole family to pile into, get the TETON Mammoth.
Winner: TETON Sports Mammoth Queen Size
- UNMATCHED COMFORT: These Queen size Sleeping Bags are the ultimate camping...
- FIT FOR A KING AND QUEEN: With a spacious 94x62 inches (239x157 cm) size, our...
- EASY TO PACK: Say goodbye to the struggle of rolling up your sleeping bag. TETON...
Best for families who want maximum space at 94×62 inches and reliable warmth down to 20°F with the included compression sack.
Runner-Up: Kelty Tru.Comfort Doublewide
- LOADED WITH FEATURES FOR 2: Customized comfort with independent ventilation...
- CLOUD LOFT INSULATION: Synthetic Insulation is compressible, quick drying, and...
- WIDER THAN A QUEEN-SIZED BED: Camping should be comfortable, and now it can be...
Best for couples who want independent temperature control with built-in blankets, foot vents, and a removable top layer.
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