The comfort rating, not the season name, describes your night · review
The lightest bag in this group, with a zipper draft tube, a roomy foot box and a lifetime warranty — and no length, no width and no user height published anywhere.
A Teton TrailHead 20 degree sleeping bag, lightweight mummy, for camping, backpacking and hiking.
TETON Sports states an innovative fill that packs down without sacrificing performance, a roomy foot box, a zipper draft tube and a soft liner; a stuff sack with the instruction to start at the bottom and stuff the bag in rather than rolling it; innovative microfibre insulation offering more loft and compressibility; advice to fluff the bag and use an insulated camp pad to sleep warmer, with hang loops for long-term storage; and a lifetime warranty.
No dimensions. No user height. No standard. No fill weight. No denier. No packed size.
The figure the rating depends on.
No length. No shoulder width. No maximum user height. Five of the seven bags in this group publish at least one of those, and three publish a height limit — 7 feet, 6 ft 2 in, 5 ft 11 in.
This shelf’s introduction ties fit to the temperature directly: length, shoulder girth and foot box shape decide dead air, and dead air is what the rating assumes.
A 20 °F figure on a bag of unknown size is a figure about an unknown volume.
The baffle that matters most.
A zip is a line of metal with nothing insulating behind it. A draft tube is a padded baffle sewn along the inside of it, and without one a bag loses heat in a stripe down its whole length.
Three bags in this group publish a draft tube. One publishes a quilting construction against cold spots. Three publish nothing.
The sentence worth more than the specification.
Rolling folds the fibers along the same lines every time, and the loft dies along those creases. Stuffing randomizes the folds.
Paired with hang loops for long-term storage, which is the other half: a bag kept compressed in its sack loses loft permanently.
Nothing else in this group says either, and both outlast any figure on the page.
The third piece of advice, and the most useful.
Insulation under a sleeper is compressed and does almost nothing; the ground takes heat away faster than the air. An insulated pad is what makes a 20 °F bag behave like one.
The sleeping-mat shelf in this catalog is where that figure lives, and this is the only bag in this group that points at it.
TETON Sports’ instructions carry the storage and the rating. Nothing here replaces them, and nothing on this page describes any product as safe.
The American Amazon store was listing it at about $65 at the time of writing.
Every figure here is what Keepa held on the day this page was last revised. Offers and prices shift without warning.
Prices quoted in this text were read on October 8, 2026. The live price is at the top of the page.
| Comfort rating | Not published as a comfort figure. The bag is published as a 20 degree bag |
|---|---|
| Limit rating | Not published |
| Standard quoted | None |
| Fill power | Not applicable — synthetic fill |
| Fill weight | Not published |
| Down or synthetic | Synthetic: innovative microfibre insulation, stated to offer more loft and compressibility |
| Shell denier | Not published. A soft-to-the-touch liner is stated |
| Baffle construction | A zipper draft tube, stated, with a roomy foot box |
| Packed size | Not published. A stuff sack is supplied, with instructions to stuff from the bottom rather than roll |
| Weight | Not published. The shipping weight is about 1.32 kg (2.9 lb), the lightest in this group |
| Amazon reference | B007JTLKCC |
| EAN | 0817354010223 |
The listing does not say. No length, no shoulder width and no maximum user height appear anywhere on the page, which is unusual on this shelf — at least five of the sixteen bags in this group publish at least one of those, and three publish a height limit of 7 feet, 6 ft 2 in and 5 ft 11 in. This shelf's introduction makes fit the last thing to read and ties it directly to the rating: length, shoulder girth and foot box shape decide dead air, and dead air is what the rating assumes. A 20 °F figure on a bag of unknown size is a figure about an unknown volume.
Because a zip is a line of metal with no insulation behind it. A draft tube is a padded baffle sewn along the inside of the zip that fills that gap, and without one a bag loses heat in a stripe down its whole length. This shelf's introduction names the baffle construction as one of the things to read around the insulation. Three bags in this group publish a draft tube and one publishes a quilting construction against cold spots; the other three publish nothing about how the heat is kept in a line.
Because rolling a synthetic bag folds the fibers along the same lines every time, and the loft dies along those creases. Stuffing randomizes the folds. The listing makes this its second bullet — "never roll your sleeping bag again" — and pairs it with hang loops for long-term storage, which is the other half of the same advice: a bag kept compressed in its sack loses loft permanently. Those two sentences are worth more to a bag’s life than most of the specification this shelf asks for, and nothing else in this group says either.
Close prices, same category: comparable camping gear. We keep only the specifications all of them publish, because a column with gaps compares nothing.
| Model | Price | Comfort rating | Down or synthetic | Shell denier | Baffle construction |
|---|---|---|---|---|---|
| TETON Sports 1022 TrailHead mummy bag | $65 | Not published as a comfort figure. The bag is published as a 20 degree bag | Synthetic: innovative microfibre insulation, stated to offer more loft and compressibility | Not published. A soft-to-the-touch liner is stated | A zipper draft tube, stated, with a roomy foot box |
| TETON Sports LEEF mummy bag, 20 F | $75 | Not published as a comfort figure. This variant is published as 20 F, with 0, 20 and 30 degree options offered | Synthetic. The listing states efficient insulation without naming it | Not published | Not published |
| VENTURE 4TH V4-02-XXL three-season bag | $55 | Not published as a comfort figure. The bag is published as comfortable in temperatures from 30 to 70 °F | Synthetic. High-grade polyester is named for the construction; the fill is not named separately | Not published. The shell is stated water-resistant and machine washable | Not published. A two-way zip and a breathable design are stated for airflow |
| Amazon Basics AMZ-3382SB mummy bag | $43 | Not published as a comfort figure. The bag is published as 20 °F | Synthetic. The fill is not named; the shell is polyester and the liner brushed tricot | Not published. A robust polyester shell is stated | Not published. A mummy shape with an adjustable drawstring hood is stated |
A backpack where the weight matters more than knowing the dimensions
Amazon reports what buyers took in the month before this page was last checked: at least 200.
The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.
Specifications: the manufacturer sheet for camping and hiking gear and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
Mummy · 400 GSM synthetic · comfort +4 °C (39 °F) and limit -2 °C (28 °F) stated · 1.55 kg (3.4 lb) total · compression sack · no standard named
The only bag here to publish a comfort and a limit figure separately — and, like every other bag in this group, it names no standard behind them.
Best for: Three-season camping where a stated comfort and limit pair matters more than a published packed size.
Mummy · 300 GSM cotton and hollow-fiber fill · comfort 15 °C (59 °F) to 20 °C (68 °F) · about 1300 g (45.9 oz) · 35 × 25 cm (13.8 × 9.8 in) packed
A three-season mummy bag that publishes weight, packed size and fill density, and puts its comfort range at 15 °C (59 °F) to 20 °C (68 °F) with no standard behind it.
Best for: Spring to autumn trips where about 1300 g (45.9 oz) into a 35 × 25 cm (13.8 × 9.8 in) roll is the constraint that matters.
20 °F, no standard · 82 × 33 in · polyester shell, brushed tricot liner · no-snag zip
Five bullets, five facts and no padding: a 20 °F mummy bag of 82 by 33 inches with a drawstring hood, a brushed tricot liner and an anti-snag zip with contrasting webbing.
Best for: A straightforward cold-weather mummy bag with nothing to decode
≈ $43
