Open main menu

Slumberjack Big Timber -20°F

rated 5 of 5 stars

The Big Timber -20°F has been discontinued. If you're looking for something new, check out the best cold weather synthetic sleeping bags for 2024.

photo: Slumberjack Big Timber -20°F cold weather synthetic sleeping bag

Warm, roomy, comfortable and durable.


  • Price
  • Performance


  • Heavy

I can't say enough. I've been using the same Big Timber -20 since 2004 and spent several hundred nights in it. ...3 months in Alaska, 2005, and many horse pack trips high in the Sierra Nevada since.

I tend to be a cold sleeper. The bag never let me down. With a good air mattress I can look forward to toasty warm and restful nights high up in the cold freezing mountains. The bag does require a large commercial washer due to its size. It's been through the wash many times and just starting to show wear. I have a new one in reserve.

It is heavy and bulky, so no backpacking. Two make a good top load on a pack saddle.

Source: bought it new
Price Paid: $79

I bought this bag a couple of years ago to go Elk Hunting in Utah. It gets really cold at 8.000ft - 9000ft and we got snow. I climbed in my bag to try and get warm and after a few minutes I was just fine and I sleep in just my underwear.

I also do a lot of packing in on horseback and it works great for that as well. I would highly recommend it. If you want a big nice warm bag this is your guy.

Price Paid: $89

Your Review

You May Like


Price MSRP: $139.99
Historic Range: $59.98-$129.95
Reviewers Paid: $79.00-$89.00
Price MSRP: $89.99
Historic Range: $46.95-$61.95

Recently on Trailspace

Patagonia Light Farrier's Shirt Review

Patagonia Iron Forge Hemp 5-Pocket Pants Review