Top 10 Best 20 Degree Ultralight Sleeping Bag In 2023

Frequently Asked Questions

What sleeping bag is good for 20 degree weather?

Assuming you are looking for a 3 season bag, here are a few things to look for: Down or synthetic insulation? Down is lighter and more compressible but does not insulate when wet.

Synthetic is less expensive, easier to find in big box stores, and will still insulate when wet but is bulkier. Rectangular or mummy shape? Mummy bags are more thermally efficient but can feel claustrophobic.

Rectangular bags give you more room to move around but cold air can enter through the openings. Women’s or unisex? Women’s bags are cut narrower through the shoulders and have extra insulation in the footbox and hood.

Unisex bags can be used by anyone but may be too large for petite people. Your sleeping pad also makes a difference in how warm you will sleep. A thicker/insulated pad will add warmth while a thinner/uninsulated pad will do little to nothing.

Sleeping on your side vs stomach also makes a difference- people tend to sleep colder on their stomachs because there is less surface area touching the ground (and therefore losing heat). Some good sleeping bags for 20 degree weather are: – The North Face Blue Kazoo ($199): This synthetic bag has Heatseeker Eco insulation which gives it an EN lower limit rating of 15 degrees Fahrenheit (-9 Celsius).

It’s available in both men’s and women’s sizes, has a stuff sack included, and weighs 3lbs 8oz (1.6kg). – REI Co-op Magma Trail Quilt ($219): This down quilt has 800 fill power duck down and an EN lower limit rating of 20 degrees Fahrenheit (-7 Celsius). It comes with straps so you can attach it to your sleeping pad, has a stuff sack included, and weighs 1lb 8oz (068kg).

Available in regular (64in/163cm) or long (72in/183cm) lengths. – Mountain Hardwear Hyperlamina Spark 34 ($279): This synthetic bag uses Mountain Hardwear’s Thermal Q Elite insulation which gives it an EN lower limit rating of 18 degrees Fahrenheit (-8 Celsius). It has a women’s specific fit, comes with a stuff sack, and weighs 2lbs 12oz (1.27kg).

Is a 20 degree sleeping bag good?

A 20 degree sleeping bag is a great option for someone looking for a versatile bag that can be used in a variety of conditions. This type of bag typically has a temperature rating of 20 degrees Fahrenheit, which means it will keep you warm in temperatures as low as that. While this may not be the warmest option out there, it is still a great choice for someone who wants a bag that can be used in multiple seasons.

Can you use a 20 degree sleeping bag in the winter?

A 20 degree sleeping bag is not appropriate for winter camping. The temperature rating on a sleeping bag is the minimum temperature at which the average person will stay warm in the bag. However, everyone sleeps differently and has different body temperatures, so it's always best to err on the side of caution and choose a sleeping bag that is rated 10 degrees lower than the coldest temperature you anticipate camping in.

What is the lightest sleeping bag made?

It’s hard to believe, but the lightest sleeping bag made is only 1.1 ounces! That’s right, just over one ounce. The bag is made by Zpacks and uses extremely lightweight and strong Dyneema Composite Fabric (formerly known as Cuben Fiber).

This fabric is so strong that it’s often used in sails for racing boats. The other key feature of this super light sleeping bag is that it uses a down fill. Down insulation is incredibly efficient at trapping heat and has a great warmth-to-weight ratio.

In fact, it’s about twice as warm as synthetic insulation like Primaloft or Thermoloft. Of course, all this warmth comes at a price – both in terms of cost and weight. The Zpacks sleeping bag will set you back $570, and at 1.1 ounces it’s not exactly what you’d call ultralight.

But if you need the absolute lightest and most packable sleeping bag possible, this is the one for you!