
There are a variety of options available for oversized sleeping bags. The Marmot Trestles Eco Elite 20 is light and small enough for backpacking but roomy enough to accommodate larger sleepers. The Magma 15 Sleeping Bag offers up to 8.5 additional inches of girth. The Big Agnes Echo Park 20 Sleeping Bag is another option, which has spacious dimensions and a multitude of features, although it is not very light or packable. The Alps OutdoorZ Redwood is a good option for car camping, as it is rugged yet comfortable, with a cozy flannel interior. For a more affordable option, the Coleman Brazos is a budget bag for car camping.
| Characteristics | Values |
|---|---|
| Retailers | REI, Amazon, Big Agnes, Outdoor Gear Lab, Klymit, The North Face, Feathered Friends, Western Mountaineering, Mountain Hardwear |
| Price | $179- $400+ |
| Sleeping Bag Temperature Rating | -10° F - 25° F |
| Sleeping Bag Weight | 2.5 lbs - 3 lbs |
| Sleeping Bag Features | Water-resistant, spacious dimensions, wrap-around zipper, pillow sleeve, sleeping pad sleeve, double draft tubes, offset stitching patterns, ripstop shell, taffeta lining, PFAS-free materials |
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What You'll Learn

Sleeping bag warmth ratings
Sleeping bags come with a variety of warmth ratings, which indicate the range of temperatures that the bag is suitable for. These ratings are based on standardised tests, such as the EN 13537 and ISO 23537 tests, which involve placing a mannequin dressed in a base layer inside the sleeping bag and recording temperature measurements via sensors as the ambient temperature drops.
The EN 13537 standard offers four different temperature ratings: EN Upper Comfort, EN Comfort, EN Lower Limit, and Extreme. The Upper Comfort rating indicates the highest temperature at which a 70kg man should feel comfortable, while the Comfort rating is the temperature at which a 60kg woman can sleep comfortably through the night. The Lower Limit rating is the temperature at which a 70kg man can sleep for eight hours without waking, and the Extreme rating indicates the temperature at which there is a serious risk of death from hypothermia within a few hours. It's important to note that these ratings are based on 'average' users and should be used as a guide, as individual preferences, metabolism, and age can affect how warm a person sleeps.
Sleeping bags can also be categorised as three-season or four-season bags. Three-season bags are designed for spring, summer, and autumn, when temperatures might dip just below freezing, while four-season bags are optimised for winter use and can handle temperatures down to around -10°C or 15°F.
When choosing a sleeping bag, it's important to consider the expected temperatures and your personal preferences for warmth. Additionally, factors such as the fit of the bag, the quality of the sleeping mat, and the insulation type can also impact how warm you will feel. Synthetic insulation tends to be heavier and bulkier than down insulation but is more water-resistant and affordable.
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Budget-friendly options
If you're looking for a budget-friendly sleeping bag, there are several options available that won't break the bank. Here are some recommendations:
Coleman Brazos
The Coleman Brazos sleeping bag is an excellent choice for those on a budget. It offers a surprising amount of warmth for its price, outperforming even some of the more expensive options. It is rugged and durable, making it perfect for camping trips and outdoor adventures. Its rectangular shape provides ample space for comfortable movement, and it features a sturdy cotton canvas shell with a cosy flannel liner. The Brazos is ideal for those who only camp occasionally or are looking for a cost-effective option for the whole family.
Kelty Cosmic Down 20
If you're seeking a warm and well-made down sleeping bag on a budget, the Kelty Cosmic Down 20 is a fantastic option. It boasts an impressive ISO Comfort rating of 31 degrees Fahrenheit, ensuring coziness during most 3-season conditions. This bag offers a zippered internal pocket, a supple recycled nylon shell, and a draft tube and collar to minimise heat loss. Kelty is known for producing inexpensive gear that punches above its weight in terms of quality, and the Cosmic Down 20 is no exception.
REI Co-op Trailmade 20 Sleeping Bag
For backpackers on a budget, the REI Co-op Trailmade 20 Sleeping Bag is an excellent lightweight option. While it's not as spacious as some other bags, it still offers a comfortable and packable design, making it perfect for those who need to travel light. This bag has received rave reviews for its spaciousness, with testers praising its comfort and plush feel.
Ozark Trail Sleeping Bags
For a very affordable option, consider the Ozark Trail sleeping bags available at Walmart. These rectangular sleeping bags come in a range of colours and are suitable for warm weather. With prices starting at $19.97, they are a great choice for those on a tight budget.
NOYAFA Sleeping Bags
Also available at Walmart, the NOYAFA sleeping bags offer a budget-friendly option for camping, hiking and outdoor travel. These ultralight sleeping bags are waterproof and suitable for all four seasons, with options starting at $26.99.
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Wide and inclusive sizing
When it comes to sleeping bags, there is no one-size-fits-all option. The good news is that there are many options for those looking for something a little more spacious.
If you're looking for a sleeping bag that comes in wider sizes, the Magma 15 Sleeping Bag offers up to 8.5 additional inches of girth. The Marmot Trestles Eco Elite 20 is another option that is light and small enough for backpacking but roomy enough to accommodate larger sleepers. The REI Co-op Magma 15 Sleeping Bag has also been deemed the best all-around inclusive-size sleeping bag.
For those who are looking for a bag that is both wide and long, the Big Agnes Echo Park 20 Sleeping Bag is a great option. It features a sleeve at the bottom that secures a sleeping pad (up to 30 inches wide) so you won't slide off your mat. The bag also has spacious dimensions, making it a good choice for those seeking a roomier option.
If you're after an oversized sleeping bag for car camping, the Alps OutdoorZ Redwood is a great choice. It has spacious dimensions and a rectangular shape, making it super comfortable for most users. The Redwood is also very warm, making it ideal for camping in cooler climates or during the fall season.
Where to buy
You can buy the Magma 15 Sleeping Bag, the Marmot Trestles Eco Elite 20, and the Big Agnes Echo Park 20 Sleeping Bag from REI. The Alps OutdoorZ Redwood is available from OutdoorGearLab, and you can also find extra-large sleeping bags on Amazon.
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Best bags for backpacking
Backpacking sleeping bags should be lightweight, warm, and compressible. Synthetic insulation tends to be heavier and bulkier than down, but down is more expensive. Mummy-shaped bags are typically narrower, so if you're a side or stomach sleeper, you may prefer a bag with wider dimensions.
The Western Mountaineering MegaLite is an ultra-premium model that utilizes 12 ounces of 850+ fill power to create a cozy down cocoon of outstanding comfort. It weighs just 1.5 pounds and offers an impressive warmth-to-weight ratio, making it ideal for cold nights in the backcountry. However, it is quite expensive.
The Mountain Hardwear Bishop Pass 15 is a lightweight, down-filled bag that is perfect for backpacking trips. It has a silky liner fabric and a water-resistant ripstop nylon outer lining to keep campers dry. It's also available in a wider size, the Magma 15, which offers up to 8.5 additional inches of girth.
The Nemo Disco 15 is a "spoon"-shaped bag that is wider than a typical mummy bag, making it ideal for side sleepers. It features two "Thermo Gill" vents that can be unzipped to release hot air in warm conditions, an oversized draft collar, and a built-in pillow sleeve. It uses 650-fill, PFAS-free hydrophobic down and a waterproof panel around the toe box.
The Marmot Trestles Eco Elite 20 is another lightweight option that is roomy enough to accommodate larger sleepers. It is comfortable and durable, and at $179, it's one of the most affordable bags in its category.
The REI Co-op Siesta Hooded 20 is a lightweight bag that packs up into a stuff sack for easy transport. The updated 2023 version includes 98% recycled insulation fill that is just as warm and durable as the previous version. It comes in two sizes: regular and long.
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Sleeping bag temperature ratings
The EN (European Norm) standard was initially adopted by the sleeping bag industry for temperature ratings. Currently, the ISO (International Standards Organization) oversees bag testing, employing a nearly identical methodology to the EN test. These standardized laboratory tests generate a rating range for each sleeping bag, with two specific temperature ratings: the comfort rating and the lower limit rating.
The comfort rating, which is typically used for women's bags, indicates the temperature at which a cold sleeper might feel comfortable. The lower limit rating, which is always lower than the comfort rating and is used for men's bags, represents the temperature at which a warm sleeper might still be comfortable. It's important to note that these ratings are estimates, and actual comfort levels may vary depending on factors such as clothing, gear, body type, and weather conditions.
When choosing a sleeping bag, it's recommended to opt for one with a comfort rating slightly lower than the lowest temperature you expect to encounter. For example, if you're expecting temperatures around 20°F, consider a bag with a comfort rating of 15°F or 20°F. Additionally, consider the type of insulation, as synthetic insulation tends to be heavier and bulkier than down insulation but offers better water resistance and a more affordable price.
Some reputable sleeping bag options with temperature ratings include the Magma 15 Sleeping Bag, the Marmot Trestles Eco Elite 20, the Marmot Women's Teton 15° Sleeping Bag, and the REI Co-op Siesta Hooded 20 Sleeping Bag. The Alps OutdoorZ Redwood is another excellent choice, known for its warmth, spacious dimensions, and rectangular shape, making it a comfortable option for car camping.
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Frequently asked questions
You can buy oversized sleeping bags from Amazon.com, REI, Klymit, and Big Agnes.
Some good options for oversized sleeping bags include the Magma 15 Sleeping Bag, the Marmot Trestles Elite Eco 20, the REI Co-op Siesta Hooded 20, and the Alps OutdoorZ Redwood.
When buying an oversized sleeping bag, consider the materials, weight, warmth rating, and price. Synthetic insulation tends to be heavier and bulkier but is more water-resistant and affordable. If you're camping in colder temperatures, opt for a bag with a lower temperature rating, as you can always unzip to cool down.











































