How to Choose Sleeping Bags for Backpacking
Sea to Summit Trailhead 30 F Synthetic Sleeping Bag
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A great choice for weekend warriors and new campers alike, the Sea to Summit Trailhead 30°F Synthetic sleeping bag offers reliable warmth and ventilation for spring, summer and fall outings.
Shop similar productsKey Details
Temperature Rating (F)
30 degrees (F)
- Utilizes WaveLoft™ construction to allow the insulation to expand out into air-trapping curves for maximum warmth
- As the temperature rises, the full-length zipper (which curves around through the footbox) allows you to increase ventilation; the bag can be opened flat and used as a quilt
- Comfortable 20-denier nylon liner fabric
- Quality durable water repellent (DWR)–treated nylon shell material helps repel external moisture
- Full-length YKK #5 main side zipper extends through the footbox zipper for increased ventilation and allows the bag to be used as a comforter
- Oversized draft tubes over the zippers to seal in warmth
- Oversized zip draft tubes with antisnag
- Long Wide size offers refined take on the classic synthetic trail bag, the Trailhead is packed full of technical features in a no fuss, uncomplicated design
- Long Wide size has a tapered rectangular shape for more space and comfort than a traditional mummy bag
- Long Wide size has a full-length #5 YKK zipper that allows the bag to open out flat and be used as a quilt; second zipper slider in footbox for versatile ventilation
- Long Wide size has WaveLoft construction for extra warmth and loft
- Long Wide size lining fabrics are attached to shell to prevent tangles
Imported.
Temperature ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth, since many different factors contribute to your comfort while you sleep. Backpacking bags are typically rated for temperature according to an independent testing protocol—currently International Organization for Standardization (ISO) 23537, though some older items followed European Norm (EN) 13537. Testing is based on a person wearing one base layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38.
Each bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Some brands determine their own temperature rating by aligning to the Comfort rating for women’s bags, to the Lower Limit rating for men’s bags, or somewhere in the middle for nongendered bags.
View all Sea to Summit Backpacking Sleeping BagsEach bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Some brands determine their own temperature rating by aligning to the Comfort rating for women’s bags, to the Lower Limit rating for men’s bags, or somewhere in the middle for nongendered bags.
| Best Use | Backpacking |
|---|---|
| Tested Lower Limit | 30 degrees (F) - ISO |
| Tested Comfort | 40 degrees (F) - ISO |
| Temperature Rating (F) | 30 degrees (F) |
| Temperature Rating (C) | -10 degrees (C) |
| Shell | 30-denier nylon 345T with C0 durable water repellent (DWR) |
| Zipper Location | Left |
| Insulation Type | Synthetic |
| Sleeping Capacity | 1-person |
| Lining | Lightweight 20-denier nylon 384T with C0 DWR |
| Sleeping Bag Shape | Mummy |
| Stuff Sack Size | Unavailable |
| Gender | Unisex |
Buying Advice
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Most Helpful Favorable Review
Happy Camper
Lorencamps10 months ago
I purchased this bag for backpacking. I haven't hiked with it yet, but I have gotten to try it overnight. It was warm enough, but I still added a liner because I run cold all the time. I'm a side and stomach sleeper and it has enough room for me to be on my stomach with my leg bent and all twisted up like a psycho. The best part was when it got cold enough, I pulled the drawstring and got it drawn up into a hoody. So, all the inside extra space didn't create air exchange and keep me cold. Its good, light, and comfortable. I'm very pleased.
Lorencamps
Big Sur, Ca
9 people found this review helpful
Most Helpful Critical Review
Not sustainable at 55F
crt994 years ago
I used it at 55F at night and I was lucky I had a spare down blanket. This bag was simply not warm enough. I'm Romanian born and a former skater, cold weather does not scare me. This bag just does not deliver as stated.
crt99
Los Angeles, CA
5 people found this review helpful
kgrill73
Colorado
Not 2.5 lbs
4 years ago
This sleeping bag weighs more than 2.5 lbs. I used it car-camping in Telluride in July (I'm from the south east US). It was cool enough outside to have a frosted car windshield when we woke up so roughly in the 30's-40's I'd assume. I was just a little chilly in my sweatpants, wool socks, and 2 sweatshirts in my tent with 2 other people. I also bought a 10 liter stuff sack for it- it just barely fits in the stuff sack (in a good way) but it definitely gets pretty small once its in there and strapped tight. Also I'm 5'7 and I was using the full length of the bag, and there's not much side to side wiggle room either- just enough to roll.
Age:25–34
Weight:125–150 lbs.
Height:5'7"
Yes , I recommend this product
Lorencamps
Big Sur, Ca
Happy Camper
10 months ago
I purchased this bag for backpacking. I haven't hiked with it yet, but I have gotten to try it overnight. It was warm enough, but I still added a liner because I run cold all the time. I'm a side and stomach sleeper and it has enough room for me to be on my stomach with my leg bent and all twisted up like a psycho. The best part was when it got cold enough, I pulled the drawstring and got it drawn up into a hoody. So, all the inside extra space didn't create air exchange and keep me cold. Its good, light, and comfortable. I'm very pleased.
Age:35–44
Yes , I recommend this product
michael3jo
California
Great warm bag that packs small
8 months ago
Recommend for sleeping where the average temperature is 35F. Slept in a long sleeve t-shirt and basic sweats and was fairly comfortable. Would add a liner or layer up in thicker pants and fleece sweater for a more comfortable sleeping experience below 35F. Packs pretty small and not the worst packing back into its sack. Good budget sleeping bag if you get on sale.
Age:25–34
Yes , I recommend this product
Tim
Arizona.
Warm, compact, light sleeping bag
8 months ago
Traded in my old bag for this one as it was rated for lower temps. Great back, very compact, lightweight and warm. Very pleased with this purchase, would recommend.
Age:45–54
Yes , I recommend this product
time travel
mid - atlantic
warm and light
8 months ago
Very happy with this purchase, not bulky like other synthetic bag, feels like a down bag, opens flat for use as a blanket, also very warm but have not tested it close to its threshold, looks like it will come in very handy for car camping come spring. Compresses very small to top it off. *****
Age:55–64
BillT
Very good for the price range but get the liner
1 year ago
I do a fair bit of motorcycle camping, so I wanted a sleeping bag that would pack up pretty small and light. But I'm also a slightly larger-than-average guy, so I wanted something that I could fit in comfortably. And since I'm not climbing K2 or anything, I didn't want to spend an arm and a leg on it. This bag fit the bill nicely. I'm not going to be camping when it's freezing out, so it's warm enough for the vast majority of what I do, although I have discovered that when it gets down to the lower end of the temp range this one is good for, I was chilly. So I bought the separate liner, which supposedly adds about 10 degrees of warmth, and I've slept comfortably (in my long johns and wool socks) down into the low 40s just fine.
Age:55–64
Weight:200–225 lbs.
Height:6'1"
Yes , I recommend this product
Tyler C
Southern Illinois
Good for price.
4 years ago
Took this camping over the weekend in early March. 27°F the first night, wore base layers and the only thing cold was my face. If I was slightly smaller in the shoulders and was a back sleeper this bag would have been perfect for me. As a side sleeper it was a bit of a hassle to turn on my side as the bag was a little tight fitting. But the warmth rating is spot on.
Age:25–34
Weight:200–225 lbs.
Height:6'0"
Yes , I recommend this product
R j
Florida
Long and Wide
1 year ago
I’m a big guy 6’2 and fat. The long wide size gives me enough space to be completely comfortable. The insulation seems adequate for a 30 degree bag but I haven’t tested it yet. The construction seems decent, the zipper is smooth. I’d rather the top seal with Velcro rather than a snap, but otherwise I am really happy with this bag.
Age:45–54
Weight:275–300 lbs.
Height:6'2"
Yes , I recommend this product
Matt
California
Pushed its weather capabilities
3 years ago
Works fantastic as I stretched it capabilities under 30F. Wrapped myself in a insulated blanket and snuggled in this bad boy in 22F weather at night in high altitude. I am personally not a big fan of mummy type sleeping bags as I prefer more room to move around as I am 6’6” (78” in) but it performed well and I have no complaints
Age:25–34
Weight:225–250 lbs.
Height:Taller than 6' 5"
Yes , I recommend this product
crt99
Los Angeles, CA
Not sustainable at 55F
4 years ago
I used it at 55F at night and I was lucky I had a spare down blanket. This bag was simply not warm enough. I'm Romanian born and a former skater, cold weather does not scare me. This bag just does not deliver as stated.
No, I do not recommend this product
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