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Premium Three-Season Down Sleeping Bags

Discover our award-winning collection of ultralight three-season sleeping bags, designed for spring, summer, and fall adventures. Handcrafted in the Pacific Northwest and filled with ethically sourced 900+ & 950+ fill-power down, these bags deliver an unmatched warmth-to-weight ratio so you can carry less and sleep better on the trail.

UL or YF?

Our popular three-season sleeping bags come in our UL (Ultralight) option a YF (made with YFuse) option. What's the difference?

UL

The lightest sleeping bags we make.

When your packing list is measured in grams, start here. Our ultralight series is about the lightest weight and most premium materials and insulation.

Insulation
950+ fill power
goose down
Shell
Pertex® Quantum Pro®
Trail weight
About 3 oz lighter than a comparable YF bag
Packed size
More compact at the same temperature rating
Fabric & care
A lighter shell that rewards careful handling
Choose it for
Gram-counters, thru-hikers, alpine climbers, fast-and-light missions, and anyone for whom every ounce matters.
Explore UL bags
YF

Durability at a lower price point.

A sturdier shell. A lower price. The YF series makes room for weekend plans, familiar campsites, and the trips you haven’t thought of yet.

Insulation
900+ fill power
goose or Muscovy down
Shell
Pertex® YFuse® · 20D
Trail weight
A few extra ounces compared with a similar UL bag
Packed size
Slightly larger, but still easy to compress
Fabric & care
A beefier weave when durability comes first
Choose it for
Weekend backpacking, camping, and premium down at a lower price
Explore YF bags

Weight and packed-size comparisons are approximate; compare equivalent models, lengths, and temperature ratings for exact specifications.

The same care in every stitchMade in SeattleRDS-certified down

See the
difference.

Check out the difference of our UL and YF sleeping bags side by side.

Pick the Right Bag: UL vs YF
Which temperature rating should I choose?

Everybody sleeps very differently. We typically recommend choosing a sleeping bag rated 10ºF below the lowest temperature you expect to encounter.If you typically sleep colder, we recommend going even lower, perhaps closer to 20ºF colder than expected temperatures.

For more information on choosing a sleeping bag, check out our guide here

How should a sleeping bag fit?

Choose enough room to settle into your usual sleeping position without pressing against the hood or footbox. Check the measurements on the individual product page; shape matters as much as length.

Does higher fill power mean a warmer bag?

Fill power describes loft for a given weight of down. It is not a temperature rating. Compare the bag’s temperature rating first, then its weight, dimensions, and materials.

Can two bags zip together?

Many models can pair, but zipper direction and construction matter. Check the two product listings or ask us to confirm the pairing before ordering.

How do I care for my bag between trips?

Never store your down bag in its small compression stuff sack! Long-term compression can damage the down clusters and reduce loft. Every Feathered Friends bag includes a large, breathable cotton storage sack. Keep it in a dry, cool place where it can stay uncompressed.

Check out the wash and care guide →

Let’s talk about your next trip.

Tell us where you’re going and how you sleep. We’ll help with the rest.

Ask our Seattle team →

Don't Take Our Word For It

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