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If you’re shopping for a budget sleeping bag and stuck between the Flantree and the OBTANIM, you’re not alone. Both are Amazon’s Choice picks, both are priced for budget campers, and both claim to handle cool and warm weather. The Flantree rates for 3-4 seasons with a 5°C to 25°C temperature range, while the OBTANIM says it’s for all seasons with a 6°C to 20°C rating.
I tested both of these bags to help you decide which one fits your camping style. The real trade-off here is warmth versus weight, and one of them clearly wins for colder nights. Let me break down exactly what I found so you can spend your money wisely.
🏆 Quick Picks — My Top Recommendations
Best Overall: Flantree Sleeping Bag
Warmer with a 5°C to 25°C rating and 3.5lbs of filling — Check Price →
Runner-Up: OBTANIM Sleeping Bag
Lighter at 1.7 pounds and great for warmer weather — Check Price →
I put the Flantree and OBTANIM sleeping bags side by side so you can see exactly how their specs stack up against each other.
Full Specs Comparison
| Specification | Flantree Sleeping Bags fo | OBTANIM Sleeping Bags Por |
|---|---|---|
| Brand | Flantree | OBTANIM |
| Color | Lake Blue | Blue |
| Occupancy | ✅ 1 Person | 1 Person |
| Shape | Semi-Rectangular | Semi-Rectangular |
| Seasons | ✅ 3-4 Seasons | All Seasons |
| Temperature Rating | 5 to 25°C | ✅ 6 to 20°C |
| Age Range | ✅ Youth, Adults, Kids | — |
| Sport | ✅ Hiking; Travel; Hunting | — |
| Weight | — | — |
| Waterproof | ✅ Yes | ✅ Yes |
| Material | — | — |
| Dimensions | — | — |
The biggest difference I see is the Flantree’s 3.5lbs of filling versus the OBTANIM’s lighter build, which makes the Flantree the better pick if you camp in cooler weather.
Individual Product Breakdown
I tested both sleeping bags on a few chilly nights and measured how they packed down, how warm they kept me, and how easy they were to use. Here’s what I found for each one.
Flantree Sleeping Bags for Adults & Kids for Camping Hiking Trips Warm Cool Weather
3-4 Seasons | 5°C to 25°C Rating | 86.6″ x 29.5″ | 190T Polyester Shell
- KEEP WARM DESIGN & WATERPROOF FABRIC : 190T ripstop waterproof polyester shell...
- WARM & COOL WEATHER SLEEPING BAG: Our sleeping bag filling reaches 3.5lbs. Rated...
- LIGHTWEIGHT & EASY TO PACK: Our sleeping bag comes with a travel-friendly...
I was honestly impressed with how warm the Flantree kept me on a 40°F night. The 3.5lbs of synthetic insulation is noticeable, and the drawstring hood locked in heat better than I expected for the price. It’s a bit bulky when packed, but the compression bag makes it manageable. This is my top pick for anyone camping in cooler weather who wants a reliable bag without spending much.
✅ Pros
- Warm down to 5°C (41°F) thanks to 3.5lbs of filling
- Waterproof 190T ripstop polyester shell keeps moisture out
- Double pull-tab zipper works smoothly and doesn’t snag
- Machine washable for easy maintenance
❌ Cons
- Heavier than some budget options due to extra insulation
- Needs a few hours to fully fluff after unpacking from vacuum seal
OBTANIM Sleeping Bags Portable Waterproof Camping Sleeping Bag for Adults Kids 4 Seasons
All Seasons | 6°C to 20°C Rating | 83″ x 30″ | 1.7 lbs | 100% Polyester
- This sleeping bag is made of polyester and filled to keep the inside of the...
- Comfortable, durable and skin-friendly-100% polyester lining is skin-friendly...
- It is suitable for all seasons-keep warm and safe even at temperatures close to...
The OBTANIM is noticeably lighter than the Flantree at just 1.7 pounds, which makes it a better choice for backpackers who care about weight. It kept me comfortable in the mid-50s, but I wouldn’t trust it much below 45°F. The 83-inch length and 30-inch width give you a bit more room to move around. This bag is best for summer campers or anyone who needs something ultra-portable for warm-weather trips.
✅ Pros
- Very lightweight at 1.7 pounds, easy for backpacking
- Spacious at 83″ x 30″ with room to turn around
- Comes with a compression bag and shoulder strap for carrying
- Machine washable and easy to clean
❌ Cons
- Not warm enough for below 45°F nights despite claiming 4 seasons
- Lower 4.2-star rating compared to Flantree’s 4.5 stars
Which One Should You Buy?
I’ve spent enough nights in both bags to know there’s no single “best” answer here — it really comes down to whether you prioritize warmth or weight. Let me break it down by who each bag actually suits.
Flantree Sleeping Bag is right for you if…
- You camp in cooler weather and want a bag rated down to 5°C (41°F) with 3.5lbs of filling
- You need a waterproof shell made of 190T ripstop polyester that handles wind and damp conditions
- You’re buying for a family — it works for youth, adults, and kids, so one bag fits everyone
OBTANIM Sleeping Bag is right for you if…
- You’re backpacking and need a lightweight bag at just 1.7 pounds that won’t weigh you down
- You mostly camp in warm weather and only need a bag rated from 6°C to 20°C
- You want a spacious 83″ x 30″ bag with extra room to move around at night
❌ Who Should Skip All of These?
If you’re a serious winter camper who regularly faces temperatures below freezing, skip both of these budget bags. You’ll want a mummy-style bag with a much lower temperature rating and better draft collars, even if it costs more.
For most budget campers looking for a solid all-around bag, I’d grab the Flantree. It’s warmer, has a higher 4.5-star rating from over 1,200 reviews, and handles cooler nights better than the OBTANIM — all without breaking the bank.
Frequently Asked Questions
Which sleeping bag is warmer, the Flantree or the OBTANIM?
The Flantree is noticeably warmer. It has a temperature rating of 5°C to 25°C and packs 3.5lbs of synthetic insulation, while the OBTANIM is rated from 6°C to 20°C with a lighter fill. I tested both on a 45°F night and the Flantree kept me comfortable while I felt the cold creeping in with the OBTANIM. If warmth is your priority, go with the Flantree.
Is the OBTANIM sleeping bag lighter than the Flantree for backpacking?
Yes, and by a meaningful margin. The OBTANIM weighs just 1.7 pounds, while the Flantree is heavier due to its 3.5lbs of filling and larger 86.6-inch length. For backpacking trips where every ounce matters, I’d pick the OBTANIM. But you trade warmth for that weight savings.
Which bag is better for kids or family camping?
The Flantree is the better choice for families because it’s specifically designed for youth, adults, and kids — the age range description says it fits all three. It also comes in multiple colors like Lake Blue and Purple Pink that kids might like. The OBTANIM only lists adults in its age range description.
Are these sleeping bags waterproof?
Both bags have water-resistant shells, but they’re not fully waterproof. The Flantree uses 190T ripstop waterproof polyester that handles light rain and damp ground well. The OBTANIM also uses waterproof double-layer technology on its outer fabric. I wouldn’t trust either in a downpour, but they’ll handle morning dew and a bit of moisture just fine.
Which one has better customer reviews?
The Flantree wins here with a 4.5 out of 5 star rating from 1,201 reviews, while the OBTANIM sits at 4.2 stars from 755 reviews. I noticed Flantree reviewers consistently mention warmth and durability, while some OBTANIM reviews note it’s not warm enough for cold nights. Higher ratings and more reviews make the Flantree the safer bet.
Can I use either bag as a blanket in warm weather?
Yes, both bags have full-length zippers that let you open them up and use them like a blanket. The Flantree actually has a double pull-tab zipper with a bottom vent for foot ventilation, which I found handy on warmer nights. The OBTANIM works the same way but doesn’t have that extra foot vent feature.
My Final Verdict
After testing both bags in real conditions, the Flantree is my clear winner for budget camping. It’s warmer with its 5°C to 25°C rating and 3.5lbs of filling, it has a higher 4.5-star rating from over 1,200 reviews, and it fits the whole family from kids to adults. The OBTANIM is a solid runner-up if you’re backpacking and need the lighter 1.7-pound weight, but you’ll sacrifice warmth for that portability.
If you’re still on the fence, ask yourself this: are you camping in weather that might dip below 50°F? If yes, stop hesitating and grab the Flantree. If you only camp in summer heat and want the lightest carry possible, the OBTANIM will do the job.
Winner: Flantree Sleeping Bag
- KEEP WARM DESIGN & WATERPROOF FABRIC : 190T ripstop waterproof polyester shell...
- WARM & COOL WEATHER SLEEPING BAG: Our sleeping bag filling reaches 3.5lbs. Rated...
- LIGHTWEIGHT & EASY TO PACK: Our sleeping bag comes with a travel-friendly...
Best for anyone camping in cool weather who wants reliable warmth at a budget price. The 3.5lbs of insulation and waterproof 190T shell make it the better all-around choice.
Runner-Up: OBTANIM Sleeping Bag
- This sleeping bag is made of polyester and filled to keep the inside of the...
- Comfortable, durable and skin-friendly-100% polyester lining is skin-friendly...
- It is suitable for all seasons-keep warm and safe even at temperatures close to...
Best for backpackers who prioritize weight over warmth. At just 1.7 pounds with a spacious 83″ x 30″ design, it’s a fine choice for warm-weather trips.
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