8 Best Lightweight Sleeping Bags

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Looking for the best lightweight sleeping bag?

We’ve got you covered.

One of the most important bits of kit when camping, a good sleeping bag keeps you warm and dry while you sleep.

This is especially important when backpacking and adventuring, as moving from place to place requires you to carry all your belongings on your back.

In this scenario a lightweight sleeping bag is crucial as it is much lighter and packs up smaller than a regular sleeping bag, making it much more portable.

A lightweight backpacker generally carries a base weight (that’s everything in your entire camping gear kit) of under 20 pounds, and a lightweight sleeping bag should make up no more than 3lbs of that weight.

Let’s get into everything you need to know before buying…

What is a Lightweight Sleeping Bag?

Lightweight sleeping bags are filed with either synthetic filling or feather down insulation.

Synthetic filling is usually polyester and keeps you warm, dries quickly if it gets wet, and is cheaper than down.

Down (that’s the soft fluffy feathers found underneath a bird’s flight feathers) is lighter and more compressible than synthetic fill, and is extremely durable.

The negative aspect of down is that if it gets wet it loses its insulating power and can be slow to dry.

lightweight sleeping bag

Many high quality lightweight sleeping bags use a protective treatment on the down insulation to prevent this happening, and/or a water resistant and breathable inner lining to keep the down dry.

Lightweight sleeping bags should come with a compression sack to allow the bag to be squeezed down to the smallest possible size while packed away.

The three most common categories for camping sleeping bags, based on temperature rating, are:

  1. Summer Season – A temperature rating of 35°F or higher. Best for camping in warm weather
  2. 3-Season – A temperature rating of 10°F to 35°F. Best for camping in spring, summer, and fall
  3. Winter – A temperature rating of 10°F or less. Made for camping in winter weather.

To be as effective as possible for their weight, lightweight sleeping bags are most often ‘mummy’ shaped or semi-rectangular to ensure that they sit close to the sleeper’s body, with very little space within the bag for cold spots to form, keeping them thermally efficient.

They also most commonly feature an integral hood to minimize the amount of heat lost from the body while sleeping.

Sleeping bag fabric is quick drying, and the case of the best lightweight sleeping bags use a special sturdy ripstop fabric which resists tearing, and are often covered with a protective coating to make the outside of the sleeping bag waterproof or water resistant.

Inner linings are soft and breathable to be comfortable on the skin yet allow air to circulate.

Benefits of a Lightweight Sleeping Bag

The most obvious benefit of a lightweight sleeping bag is portability.

Weighing less makes it much easier to carry around, so it’s the ideal choice for backpackers who would otherwise get tired hauling a normal sleeping bag around.

best lightweight compact sleeping bag

Likewise, the fact that lightweight sleeping bags tend to be much more compact than normal sleeping bags means that they take up less space when backpacking, leaving you unencumbered and able to move freely and enjoy the great outdoors.

When to Use a Lightweight Sleeping Bag

When you’re choosing a backpacking sleeping bag, you need to take into account warmth, weight, comfort, functionality and price to find the best sleeping bag for your adventure style.

For example, if you’re a world traveler and will be hopping between many different countries, a three season lightweight sleeping bag with down filling would be best as it is a lot more versatile.

In any case, choosing a lightweight sleeping bag gives you the freedom to go on epic adventures off the beaten track.

Here’s a great video guide to choosing the best sleeping bag for backpacking:

If you prefer to car camp or family camp, a lightweight sleeping bag may not be necessary as when travelling with a vehicle there is more space to pack all your camping gear.

Normal sleeping bags can often also be zipped together to create a double sleeping bag for couples, or completely unzipped to be flat and double up as somewhere comfortable to sit on the ground.

Best Lightweight Sleeping Bags

Here’s our list of 8 top rated lightweight sleeping bags to suit all needs and budgets…

Therm-A-Rest Questar 20-Degree Lightweight Down Mummy Sleeping Bag

lightweight sleeping bag

Available in 3 different sizes for different body shapes, the Therm-A-Rest Questar 20-Degree Lightweight Down Mummy Sleeping Bag weighs a maximum of 2 lbs 7 ounces and packs down to a size of 9 x 14 inches.

This lightweight backpacking sleeping bag is filled with special 650 fil Hydrophobic Down insulation which is water resistant, dries quickly and compresses down easily.

Ideal for 3 season and warm weather camping, the mummy shape design features extra insulation around the toe pocket, an adjustable hood with draft collar, and zoned insulation to ensure the down filling stays exactly where it should for ultimate comfort and warmth.

The Therm-A-Rest Questar can be connected to a sleeping pad to maximize comfort, limit movement during sleep, and prevent cold spots.

Pros

  • Superior quality water resistant goose down filling
  • Contoured mummy design
  • Warm and comfortable
  • Weighs less than 3 pounds
  • Packs down very small
  • Versatile for most seasons
  • Durable, water resistant ripstop outer layer
  • Can be attached to a sleeping pad
  • Available in 3 different sizes

Cons

  • Not suitable for winter or extreme weather
  • Zipper isn’t full length

best lightweight sleeping bag

Marmot Trestles 30 Mummy Sleeping Bag

lightweight backpacking sleeping bag

This heavily insulated lightweight sleeping bag uses two layers of hi-tech, moisture resistant SpiraFil High-Loft synthetic insulation to retain the maximum of body heat even in temperatures as low as 30 degrees Fahrenheit.

This is further aided by the mummy design with hood and zippered closure, plus combination wave construction ensures warmth and space on top, and a cushioned sensation on the bottom of the bag for extra comfort.

If you get too toasty there’s a secondary fold-down zipper for ventilation.

The Marmot Trestles 30 Mummy Sleeping Bag comes in two different lengths, weighs around 3 lbs, and packs down to a volume of 10.5 liters.

Pros

  • Suitable temperatures down to 30 degrees Fahrenheit
  • Warm yet breathable construction
  • Compact and portable
  • Water resistant
  • Available in 2 different sizes
  • Comfortable mummy design
  • Durable
  • Comes with stuff sack
  • Suitable for 3 seasons

Cons

  • Zippers can sometimes snag so use them gently!

best lightweight sleeping bag

Hyke & Byke Down Sleeping Bag for Backpacking 

best lightweight sleeping bag

The Hyke & Byke Quandary 15 Degree lightweight sleeping bag has a comfort limit from 23° to 50 ° Fahrenheit and a survival limit rating is 15° Fahrenheit.

It features top quality and durable duck down filling in horizontal baffles which gives a high warmth-to-weight ratio.

The body fabric is tough, water repellent Rip-Stop nylon, and drawstrings help keep the hood snug around your head while you sleep. The hood itself also has enough room for a pillow.

Available in a range of 3 different sizes the mummy style is designed to be super comfortable, with a roomy footbox and wide shoulders.

Quality YKK zippers have added baffles to keep in heat.

The Hyke & Byke Quandary weighs around 3 pounds and compresses down to a package size of 10″ long and 7.5″ in diameter when in the stuff sack.

Pros

  • Good value for money
  • Robust design
  • High quality down filling
  • Retains warmth effectively
  • Spacious hood design
  • Available in 3 different sizes
  • 5 different colors to choose from
  • Great warmth to weight ratio
  • Compresses down easily

Cons

  • A bit of an odor upon first unpacking
  • Not as fluffy and padded as some other sleeping bags

best lightweight sleeping bag

Teton Sports TrailHead Ultralight Mummy Sleeping Bag

ultralight sleeping bag

Designed for comfort and weight reduction, the Teton Sports TrailHead Ultralight Mummy Sleeping Bag has a soft, micro-polyester breathable liner along with an extended foot box that has enough space for your toes.

The outer shell is made from tear resistant and water resistant Rip-Stop fabric. This lightweight sleeping bag is designed to be hassle-free to pack away — just scrunch it up into the stuff sack without the need for rolling.

It features synthetic microfiber insulation which gives a temperature rating of 20° F.

The Teton Sports TrailHead also features a handy zippered interior pocket for precious personal items, zippers with draft tubes, shoulder baffle, and adjustable hood.

Weighing just under 3 lbs, it can be compressed into a 6 x 11 inch package for storage.

Pros

  • Low price
  • Durable and high quality
  • Great features for the price
  • Roomy design
  • Soft and comfortable
  • Compact when compressed
  • Unisex

Cons

  • May not be fully effective at 20° F
  • Not machine washable

best lightweight sleeping bag

Terra Hiker Ultra-Lightweight Sleeping Bag

lightweight compact sleeping bag

Fit for 3 seasons camping, the Terra Hiker Ultra-Lightweight Sleeping Bag is impressively light, weighing only 1.95 lbs for the largest of the two available sizes.

The rectangular design can be unzipped completely flat and used as a blanket, or zipped together with a second sleeping bag to create a double size.

Despite its light weight, this sleeping bag can nevertheless keep you warm down to 45 degrees Fahrenheit.

Made from sturdy water resistant nylon with a plush cotton interior and a double reinforced zipper, it can be rolled up into a 5 x 7.5 inch package for transport.

Pros

  • Available in 3 different colors
  • Super lightweight and compact
  • Comes in a choice of 2 different sizes
  • Extremely affordable
  • Durable and reliable
  • Can also be used as a blanket or made into a double

Cons

  • Not very thick
  • Better suited to use in warmer weather

best lightweight sleeping bag

WINNER OUTFITTERS Mummy Sleeping Bag with Compression Sack

lightweight sleeping bags

Another excellent budget buy, this mummy style sleeping bag from Winner Outfitters weighs in at only 2.8 lbs thanks to the non-allergenic, lightweight synthetic Hollow Fiber fill, yet insulates well to provide a comfortable temperature at 35 degrees Fahrenheit.

The polyester Rip-Stop shell is covered with a protective weatherproof coating, and the polyester inner is soft and comfortable.

The special double slider zipper is also weatherproofed, with zipper draft tubes to keep out the cold, and the hood features a draft collar.

When compressed, this lightweight sleeping bag has a size of 14 x 8 inches.

Pros

  • Very lightweight
  • Machine washable
  • Attractive price
  • Available in 4 different colors
  • Adjustable zipper system for regulating temperature
  • Good quality

Cons

  • One size only
  • Can be difficult to pack into the stuff sack

best lightweight sleeping bag

Therm-a-Rest Saros 20-Degree Synthetic Mummy Sleeping Bag

best lightweight sleeping bag

Constructed from strong 20 Denier Rip-Stop polyester coated with a durable water repellent finish, and with a highly compressible synthetic hollow fiber insulation that serves to keep temperatures toasty even when wet, the Therm-a-Rest Saros 20-Degree Synthetic Mummy Sleeping Bag is a lightweight sleeping bag suitable for 3 seasons camping or camping in warm weather conditions.

It can be strapped securely to a sleeping pad using the special connectors to provide added comfort.

A draft collar, insulated toe pocket, zipper with protective draft tube, and adjustable hood all help keep cold air out and warm air in.

Available in 3 sizes, the largest version of this lightweight sleeping bag packs into a 13 x 18 inch bundle which weighs 3 lbs 12 ounces.

Pros

  • Versatile for 3 seasons camping
  • Good range of sizes available
  • Hypo-allergenic
  • Robust construction
  • Comfortable
  • Quality zippers that don’t snag
  • Can be attached to a sleeping pad or blanket

Cons

  • A little bulky when packed into the stuff sack

best lightweight sleeping bag

Abco Tech Envelope Lightweight Sleeping Bag

lightweight sleeping bag

This generously sized rectangular lightweight sleeping bag by Abco Tech boasts a 20 degree Fahrenheit temperature rating and is water and weather resistant, making it suitable for 3 seasons and winter use.

Machine washable, it benefits from a non-allergenic polyester shell and soft polyester inner lining which is soothing on the skin.

The total weight of this sleeping bag plus the compression sack is 4.2 lbs, and when packed away the sack measures 16 x 9 inches.

This lightweight sleeping bag can also be completely unzipped and used as a blanket.

Pros

  • Amazing low price
  • Can be used all year round, even in extreme temperatures
  • Easy to clean
  • 100% satisfaction guarantee
  • Soft and comfortable to sleep on
  • Quality, durable construction
  • Available in a choice of 2 different colorways

Cons

  • A little heavy and bulky compared to other similar sleeping bags
  • One size only

best lightweight sleeping bag


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