Hummingbird YF 20/30 Sleeping Bag
Hummingbird YF 20/30 Sleeping Bag

Hummingbird YF 20/30 Sleeping Bag

Regular price Sale price$509.00
18 reviews


Please view our Shipping information here for updated shipping times.

Once we receive your order, we will finish hand-crafting your sleeping bag right here in Seattle!

If you have an urgent deadline, do not hesitate to contact us.

Please check our Shipping Info page for current shipping times. Thanks!

When every gram counts and warmth can’t be compromised the Hummingbird is the versatile bag of choice. With the slimmest cut in our lineup, the Hummingbird leaves no room to spare; perfect for going fast and light.

Available in 20 Degree and 30 Degree options.

Hummingbird too tight for comfort?  Check out the Swallow or Swift for the same great features with a little more room.

Our YF line of sleeping bags feature a lightweight, 100% nylon Pertex® Quantum® shell that uses yarns with unique Y-shaped filaments to create a fabric with increased downproofing and water beading properties, even after years of use and washing.

YF: YFuse. Pertex Quantum® 20 denier mini-ripstop fabric treated with a DWR (durable water repellent) finish.


  • Passive collar provides an extra cushion of down around your neck to trap the heat
  • Trapezoidal footbox allows your feet to fall in a natural pose without compressing the sides
  • Continuous baffles let you position the insulation where you need it
  • 3D contoured hood opens wide for warm nights and cinches tight when the temps start to drop
  • Generous draft tube prevents cold air from seeping past the zipper
  • #5 YKK two-way zipper with locking sliders
  • Top-stitch construction ideally suited to our ultralight fabrics
  • Includes storage bag & stuff sack

Additional Info

Ideal Sleeper Height
Reg 6' 0" / 183 cm
Long 6' 6" / 198 cm
Dimensions 58" shoulder / 52" hip / 38" footbox
Zipper Left Side
Shell Pertex® YFuse®
Lining 100% Recycled 20 Denier plain weave 37g/m²
Fill Power 900+ Goose Down
Origin Made in Seattle, USA of imported materials
Temp Rating 20ºF / -6.67ºC 30ºF / -1.1ºC
Fill Weight Reg 14 oz / 397 g
Long 14.6 oz / 415 g
Reg 11.5 oz / 327 g
Long 12 oz / 342 g
Average Weight Reg 1 lb 10.3 oz / 747 g
Long 1 lb 11.1 oz / 769 g
Reg 1 lb 7 oz / 652 g
Long 1 lb 8.2 oz / 687 g
Packed Size 9L 8L


Customer Reviews
4.9 Based on 18 Reviews
5 ★
4 ★
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Filter Reviews:
Gregory B.
United States United States

Everything I Hoped It Would Be!

I ordered my bag on Monday 9/5 (Labor Day Holiday) Customer Service said to allow 6-9 days... I told them I had a back-packing trip 9/14. I received it 9/10, the following Saturday! Very nice customer service rep. 4 day trip in the Sierras. Backpacking up to 8,500'. Lowest night - 28 degrees. I was warm without layers of clothes. I didn't even mummy myself in the bag. Just wick dry shirt and legs. I'm 5'9", 170-lb. Hummingbird YF 20 degree, regular bag. Plenty of room. I will continue to use this bag into winter without fear of temperatures in the teens. I dropped 3lbs off my pack and I've never been as comfortable. Thank you Feathered Friends!

  • How is the fit of the sleeping bag? Runs SnugVery Roomy
  • How is the warmth? Not WarmExtremely Warm
  • How would you rate the quality? Not greatExcellent
Richard M.

This is my second one. I loved my first one and it burnt up in the High Park Fire in northern Colorado. So I bought a new one

glenn s.

Hummingbird sleeping bag

Well-made product, the company obviously takes a lot of pride in its work. The sale was easy and professional, and they made sure that I was satisfied

Amy B.

Dario S.

Exceptional quality YF20

I received this bag in only 4 days. Customer service was impeccable and friendly (over Christmas, when everyone is under pressure). The bag itself is on a different league. It is ridiculously light, well made, packs very small and its rating is conservative (I've used it in 15 F and was fine, with base layers). I am super happy with it and cannot recommended enough. Save a bit and go for it. Thanks.