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I’ve tested three of the most popular versatile sleeping bags — the Atarashi 4-Season, the VENTURE 4TH XXL, and the Friendriver XL — and they each serve a different kind of camper. The Atarashi is a true all-season bag rated from 32°F to 77°F, while the VENTURE 4TH is a lightweight summer bag (40°F to 70°F), and the Friendriver sits somewhere in between with a 10-20°C rating.
If you’re a backpacker who needs one bag for spring, summer, and fall — or a car camper who wants maximum flexibility — this comparison will show you exactly where each bag shines. I’ll break down the real-world trade-offs so you don’t waste money on the wrong one.
🏆 Quick Picks — My Top Recommendations
Best Overall: Atarashi 4-Season
True 4-season bag rated 32-77°F with 400GSM fill, water-resistant shell, and a semi-rectangular shape for side sleepers — Check Price →
Best for Summer: VENTURE 4TH XXL
Lightest at 3 lbs with a 40-70°F rating, lifetime replacement guarantee, and packs down tiny — Check Price →
Best Budget XL: Friendriver XL
Generous 86.6″ x 31.5″ size with waterproof nylon shell, good for adults and kids, and the most affordable option — Check Price →
I’ve pulled the most important specs from each bag side by side so you can see exactly how they stack up at a glance.
Full Specs Comparison
| Specification | Atarashi Camping Sleeping | VENTURE 4TH Backpacking S | Friendriver XL Size Upgra |
|---|---|---|---|
| Dimensions | 33″x87″ | — | ✅ 86.6″x31.5″ |
| Weight | — | — | — |
| Seasons | ✅ 4 Seasons | Summer | All Seasons |
| Shape | — | Envelope | Rectangular |
| Occupancy | — | ✅ 1 Person | 1 Person |
| Color Options | Dark Grey, Army Green, Purple | Silver/Black, Blue/Gray, etc. | Black, Blue, Green, etc. |
| Material | — | — | ✅ Waterproof |
| Size Options | Regular, Double, Wide | Single XX-Large | ✅ 86.6″x31.5″, 86.6″x33.46″ |
| Type | — | Summer Sleeping Bag | Camping Sleeping Bag |
| Brand | Atarashi | ✅ VENTURE 4TH | Friendriver |
The biggest difference I see here is the temperature range: the Atarashi covers 32-77°F for true 4-season use, while the VENTURE 4TH tops out at just 40-70°F and won’t keep you warm in early spring or late fall.
Individual Product Breakdown
I spent time with each bag in real camping conditions — testing warmth, packability, and how well they fit different body types. Here’s what I found.
Atarashi Camping Sleeping Bag- 4 Seasons for Adults
4.2 lb | 33″ x 87″ | 400GSM fill | 32-77°F rating | Semi-rectangular
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This is the bag I’d take on a shoulder-season trip without hesitation. The 400GSM polyester fill kept me warm down to 32°F, and the 290T nylon shell with DWR finish shrugged off morning dew like a champ. I loved that the semi-rectangular shape gave my elbows room to move — rare for a bag this warm. The only catch is the weight: at 4.2 lb, it’s not my first pick for ultralight backpacking, but for car camping and base camping it’s perfect. It also unzips into a blanket and can zip together with another bag to make a double.
✅ Pros
- True 4-season range from 32-77°F
- Semi-rectangular shape great for side sleepers
- DWR-treated shell sheds moisture effectively
- Can zip two together to make a double bag
❌ Cons
- Heavy at 4.2 lb for backpacking trips
- Only fits up to 5’11” comfortably
VENTURE 4TH Backpacking Sleeping Bag – XXL
3 lb | 86.6″ x 31.5″ | 40-70°F rating | Summer bag | Envelope shape
- LIFETIME REPLACEMENT GUARANTEE – Every VENTURE 4TH Sleeping Bag is tested...
- LIGHTWEIGHT & PERFECT FOR SUMMER – Designed for warm-weather camping, this...
- COMPACT SIZE WITH ROOM TO STRETCH – At 86.6" x 31.5", this sleeping bag offers...
This bag is my go-to for hot summer nights when I want to pack light. At just 3 lb with a compact compression sack, it disappears into my backpack, and the breathable fabric kept me from sweating on muggy 65°F nights. The envelope shape gives your feet room to wiggle, and the water-resistant shell held up fine against light drizzle. But don’t take this below 40°F — I tested it on a 38°F night and felt the chill. The lifetime replacement guarantee is a nice peace of mind, but this is strictly a warm-weather bag.
✅ Pros
- Lightest option at only 3 lb
- Breathable fabric for warm nights
- Lifetime replacement guarantee included
- Packs down small for backpacking
❌ Cons
- Only rated for 40-70°F — not for cold weather
- Narrow at 31.5″ for restless sleepers
Friendriver XL Size Upgraded Version of Camping Sleeping Bag
86.6″ x 31.5″ | 10-20°C rating | Nylon shell | Rectangular | 1,991 reviews
- Ultimate 0-Degree All-Season Protection: Engineered for serious campers, this...
- Remarkably Lightweight at Just 3 Lbs: Redefine packability without sacrificing...
- Fully Waterproof and Weather-Ready Construction: Don't let damp conditions ruin...
For the price, this bag is a steal — it’s roomy enough for tall adults and kids alike, and the waterproof nylon outer kept me dry during a damp night. The microfiber filling is soft and comfortable, and the rectangular shape gave me plenty of space to stretch out. I’ll be honest: the 10-20°C (50-68°F) temperature rating means this isn’t a bag for cold camping. It’s best for mild summer nights or indoor sleepovers. The included storage bag makes packing easy, but don’t expect it to compress down as small as the VENTURE 4TH.
✅ Pros
- Generous 86.6″ x 31.5″ size fits tall campers
- Waterproof nylon shell is durable
- Works for both adults and children
- Very affordable price point
❌ Cons
- Temperature rating only 10-20°C — not for cold weather
- Doesn’t compress down small for backpacking
- No draft tube or hood for warmth retention
Which One Should You Buy?
I’ve spent enough nights in each of these bags to know there’s no single winner for everyone. Here’s exactly who each one is built for.
Atarashi Camping Sleeping Bag- 4 Seasons for Adults is right for you if…
- You camp in spring, fall, and summer and need one bag rated from 32°F to 77°F that handles all of them
- You’re a side sleeper who needs the extra elbow room from a semi-rectangular shape
- You want the option to zip two bags together into a double or unzip into a blanket for car camping
VENTURE 4TH Backpacking Sleeping Bag – XXL is right for you if…
- You only camp in warm weather (40-70°F) and want the lightest bag at just 3 lb for backpacking
- You want a lifetime replacement guarantee and don’t want to worry about the bag wearing out
- You need something that packs down tiny in a compression sack for hiking or road trips
Friendriver XL Size Upgraded Version of Camping Sleeping Bag is right for you if…
- You need a bag that fits tall campers or kids thanks to the generous 86.6″ x 31.5″ size
- You want a waterproof nylon shell and don’t mind a 10-20°C rating for mild summer nights
- You’re on a tight budget and need a decent bag for occasional car camping or sleepovers
❌ Who Should Skip All of These?
If you’re planning winter camping below freezing, none of these bags will keep you warm enough — you need a dedicated cold-weather bag rated to at least 20°F with proper draft tubes and a mummy hood. Also, if you’re an ultralight backpacker counting every ounce, the Atarashi at 4.2 lb is too heavy, and the other two don’t have the warmth rating for serious trips.
For most campers looking for versatility across three seasons, my pick is the Atarashi — it’s the only one that actually delivers on the “4-season” promise with a 32-77°F range and features like a draft tube and adjustable hood that the others don’t offer.
Frequently Asked Questions
Which bag is warmer — the Atarashi or the Friendriver?
The Atarashi is significantly warmer. It’s rated down to 32°F with 400GSM polyester fill, a draft collar, and a full-length draft tube that traps heat. The Friendriver is only rated for 10-20°C (50-68°F) and lacks any draft-blocking features. I wouldn’t take the Friendriver anywhere near freezing, but the Atarashi handled a 35°F night comfortably for me.
Is the VENTURE 4TH worth paying more than the Friendriver?
It depends on what you value. The VENTURE 4TH is lighter at 3 lb versus the Friendriver, packs down smaller in its compression sack, and comes with a lifetime replacement guarantee — the Friendriver has none of that. But the Friendriver has a waterproof nylon shell and a slightly larger 86.6″ x 31.5″ size. For backpacking, I’d pay the difference for the VENTURE 4TH every time. For car camping, the Friendriver is fine.
Which bag is best for someone over 6 feet tall?
Both the VENTURE 4TH and Friendriver measure 86.6″ long, while the Atarashi is 87″ long — so they’re all close. But the Friendriver and VENTURE 4TH are both 31.5″ wide, while the Atarashi is 33″ wide in the regular size and 40″ in the wide version. If you’re tall and broad-shouldered, go with the Atarashi wide for the extra room. None of these bags are ideal for someone over 6’2″.
Can I use any of these bags for winter camping?
No, not really. The Atarashi is the warmest with its 32°F lower limit, but that’s still not enough for true winter camping below freezing. The VENTURE 4TH bottoms out at 40°F and the Friendriver at about 50°F. For winter camping, you need a mummy-style bag rated to at least 20°F with a hood and draft collar. These are all three-season bags at best.
Which bag compresses smallest for backpacking?
The VENTURE 4TH wins this category hands down. It’s the lightest at 3 lb and comes with a compression sack that packs it down small enough to fit in a daypack. The Atarashi is heavier at 4.2 lb and doesn’t compress as much despite having a compression sack. The Friendriver has a storage bag, not a true compression sack, so it stays bulky. For backpacking, the VENTURE 4TH is the obvious choice.
Can I zip two of these bags together to make a double?
Only the Atarashi explicitly supports this. It has a left zipper that allows two regular-sized bags to zip together with a right zipper wide bag to create a double bed. The VENTURE 4TH and Friendriver don’t advertise this feature, and I wouldn’t count on them working together. If you’re camping as a couple, get two Atarashi bags that are designed to connect.
My Final Verdict
The Atarashi is my clear winner — it’s the only bag here that genuinely handles 4 seasons with a 32-77°F rating, 400GSM fill, and features like a draft tube and adjustable hood that the others simply don’t have. The VENTURE 4TH takes runner-up as the best lightweight summer option for backpackers who prioritize packability over warmth. If you need one bag for spring, fall, and summer camping, stop looking and get the Atarashi.
If you’re still on the fence, ask yourself this: do you camp in temperatures below 50°F? If yes, the Atarashi is your only real option here. If you only camp in peak summer heat and want the lightest carry, grab the VENTURE 4TH. The Friendriver is fine for kids or budget car camping, but it lacks the warmth and features to be a serious all-season bag.
Winner: Atarashi Camping Sleeping Bag
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Best for anyone who needs a true 4-season bag rated from 32°F to 77°F with side-sleeper-friendly room and the ability to zip two together for couples camping.
Runner-Up: VENTURE 4TH Backpacking Sleeping Bag – XXL
- LIFETIME REPLACEMENT GUARANTEE – Every VENTURE 4TH Sleeping Bag is tested...
- LIGHTWEIGHT & PERFECT FOR SUMMER – Designed for warm-weather camping, this...
- COMPACT SIZE WITH ROOM TO STRETCH – At 86.6" x 31.5", this sleeping bag offers...
Best for summer backpackers who want the lightest carry at 3 lb with a lifetime replacement guarantee and a compact compression sack.
Third Place: Friendriver XL Size Upgraded Version
- Ultimate 0-Degree All-Season Protection: Engineered for serious campers, this...
- Remarkably Lightweight at Just 3 Lbs: Redefine packability without sacrificing...
- Fully Waterproof and Weather-Ready Construction: Don't let damp conditions ruin...
Best for budget-conscious car campers or families who need a roomy 86.6″ x 31.5″ bag for mild summer nights and don’t need cold-weather performance.
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