Sea to Summit
Hamelin Synthetic Sleeping Bag
Sold by the people who make it — no third-party seller in between.
Manufacturer list price (MSRP)
$176.00
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Overview
Hamelin Synthetic Sleeping Bag The Hamelin is a performance-oriented synthetic sleeping bag designed for comfort. Built for the backcountry, it is at home in a range of climates and conditions – especially when things turn damp. The weight-efficient Contour shape offers room to move in any sleeping position, while Layers of Revive Loft are strategically placed to maximise insulation value.
Specs
- Brand
- Sea to Summit
- Weight
- 1220 g · 43.0 oz
- Temp rating
- 30 °f | -1 °c (ISO 23537, tested by Sea to Summit)
- Fill
- synthetic insulation
- Shape
- Contour
Weight vs. category
21% heavier than the category average.
How it measures up
Against every one of the sleeping bags & quilts in the RidgeNote register with a published figure. Manufacturer-listed; sources and dates are on this page.
- Weight
- 2.69 lb (1220 g)
- Lighter than 29% of 24 weighed · #17 lightest
- +14% vs the median 2.36 lb
- Price
- $196.00
- Cheaper than 82% of 28 priced · #5 cheapest
- -49% vs the median $386.98 · $4.55/oz (median $8.20/oz)
- Temperature rating
- 30 °F
- Lower than 21% of 48 rated
- median 20 °F
The lightest of the sleeping bags & quilts on record is Gossamer Gear Cumulus x Gossamer Gear Aerial 330 Sleeping Bag at 11.6 oz — 891 g less for $203.00 more.
The cheapest is Sea to Summit Boab Synthetic Sleeping Bag at $124.00 — $72.00 less and 90 g heavier.
RidgeNote verdict
Similar — lighter or cheaper
Compared with
Side by side on weight, list price and cost per ounce.
Related reading
What Is the Lightest 20 Degree Sleeping Bag in 2026?
The lightest 20 degree sleeping bags for 2026, ranked by weight, price, and price per ounce, from 800 g to 2041 g across eight models.
What's the Lightest Ultralight Sleeping Bag Worth Buying in 2026?
RidgeNote ranks 24 ultralight sleeping bags and quilts by published weight, from 11.6 oz to 72.0 oz, so you know what going lighter costs in ounces.
What's the Lightest 30 Degree Sleeping Bag in 2026?
RidgeNote ranks six 30 degree sleeping bags and quilts by maker-published weight, from 540 g to 1310 g, with price per ounce for every model.
Manufacturer list price (MSRP)
$176.00