
Sleeping bags are a necessity for camping and backpacking trips, and even for babies. When choosing a sleeping bag, it's important to consider the activity you'll be using it for and the temperature range you expect to encounter. For example, backpacking sleeping bags are designed to be lightweight and compact, while camping sleeping bags offer more room. Sleeping bags for babies should be manufactured to the highest standard and adhere to safety guidelines with a safety standard marking (BS EN 16781:2018). Budget options are available for those watching their pennies, but they may lack the comfort and quality of premium bags.
Are sleep bags safe?
| Characteristics | Values |
|---|---|
| Baby sleep bags | Prevent baby's head from being covered; must adhere to safety guidelines and carry a safety standard marking (BS EN 16781:2018) |
| Camping sleep bags | Roomy; no need to worry about weight |
| Backpacking sleep bags | Lightweight; more efficient; provide more warmth for weight |
| Choosing a sleep bag | Consider temperature rating, type of insulation, weight, and cost |
| Double sleep bags | Designed for couples; rectangular bags can be zipped together if they are the same model and brand |
| Kids' sleep bags | Shorter, smaller, and more affordable variations of adult sleep bags |
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What You'll Learn

Baby sleep bag safety
Baby sleep bags, also known as sleep sacks, are generally considered safe for babies and even reduce the risk of sudden infant death syndrome (SIDS). They are designed to keep the baby's neck and head uncovered, preventing them from getting covered and reducing the risk of suffocation. The American Academy of Pediatrics (AAP) recommends keeping loose bedding away from infants until they are at least 12 months old due to the risk of suffocation and strangulation. Sleep sacks provide a safer alternative to blankets and help regulate the baby's temperature, reducing the risk of overheating, which is another factor associated with SIDS.
However, it is important to ensure that sleep sacks are used correctly and are appropriately fitted to be safe. They should be snugly fitted around the torso, with the baby's arms left free to move. This is important because if the baby rolls over onto their belly, they can use their arms to roll themselves back, reducing the risk of suffocation. Sleep sacks that cover the arms can restrict the baby's movement and make it difficult for them to extricate themselves if they get trapped in a dangerous position. Therefore, it is recommended to choose sleep sacks that are sleeveless or have sleeves with buttons under the armpits for a snugger fit.
The sizing of the sleep sack is also crucial. If the sleep sack is too large, the baby may slip down inside, posing a suffocation hazard. The neck opening should not be too wide, and shoulder straps are important to secure the sleeping bag in place and prevent the baby's head from slipping down. The tog value or rating of the sleep sack should be clearly marked and appropriate for the room temperature to avoid overheating.
Additionally, the quality and safety standards of the sleep sack are essential. A recent safety test revealed that only a few well-known brands passed stringent safety tests. Sleep sacks should carry a safety standard marking, such as BS EN 16781:2018, and be manufactured to the highest standards. The lining, buttons, and fasteners should be secure and not pose a choking hazard if they come loose.
Overall, baby sleep bags can provide a safe and comfortable sleeping environment for infants when used correctly and appropriately fitted. They offer several benefits, including temperature regulation, SIDS risk reduction, and convenience for parents during diaper changes. However, it is important to prioritize the baby's safety and follow the recommended guidelines to ensure a safe sleeping environment.
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Temperature ratings
The key factor when choosing a sleeping bag is its temperature rating. Sleeping bags are now rated according to the International Organization for Standardization standard, using ISO 23537 (the ISO Test). This test involves placing a heavily instrumented electronic mannequin, dressed in long underwear, inside the sleeping bag in question, and positioning both on top of a foam sleeping pad. The temperature of the air is then lowered, and the amount of electrical energy needed to maintain the mannequin's initial temperature is measured.
The ISO Test provides three temperature thresholds: a comfort rating, a limit rating, and an extreme rating. The comfort rating indicates the temperature at which a cold sleeper might feel comfortable. This is the temperature rating used for women's bags. The limit rating, which is always lower than the comfort rating, indicates the temperature at which a warm sleeper might still feel comfortable. This is the temperature rating used for men's bags. The extreme rating indicates the temperature at which there is a risk of health damage to a "standard woman" by hypothermia.
It's important to note that the temperature ratings are estimates and may not perfectly match real-world comfort levels due to various factors such as differences in clothing, gear, body types, weather conditions, and more. Therefore, it is recommended to give yourself a buffer when choosing a sleeping bag and to check the weather forecast before your trip.
Sleeping bags can also be categorized by season ratings, indicating the range of temperatures they are suitable for. For example, one-season sleeping bags are designed for summer camping, while four-season sleeping bags are designed for winter use. Additionally, some companies have developed their own temperature rating systems that combine scientific testing, field trials, and expedition testing to provide an indication of the minimum temperature the bag should be comfortable for an experienced user.
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Double sleep bags
Double sleeping bags are a great option for couples who want to sleep together while camping. They are also ideal for families and can be used by two people or separated into two individual sleeping bags. When choosing a double sleeping bag, it's important to consider the shape, material, and features that will best suit your needs.
There are four main shapes of sleeping bags: rectangular, semirectangular, mummy, and double. If you're car camping, you might prefer a rectangular or semirectangular bag, as these tend to offer more room to move around in. For colder climates, the mummy-shaped bag is a good option as it provides more warmth. Double sleeping bags are typically designed to be spacious and comfortable for two people, so they may be wider and longer than a single sleeping bag.
The material of your double sleeping bag will affect its warmth, weight, and price. Synthetic materials tend to be more affordable, faster-drying, and suitable for damp conditions. Down fillings, on the other hand, are lightweight, durable, and compress into a smaller size for easier transport.
When it comes to features, you may want to look for a double sleeping bag with a waterproof shell, especially if you plan to camp in wet weather. A snug-fitting hood can provide extra warmth, while additional zippers and stash pockets can add convenience and functionality. Some double sleeping bags also come with built-in pillows, saving you from having to pack extra ones.
Weight is an important consideration if you're backpacking, as you'll want a lightweight bag that can be compressed into a small size. However, if you're car camping, weight is less of a concern, and you can opt for a plush and roomy double sleeping bag. Temperature ratings are also crucial, especially if you plan to camp in cold weather. Choose a bag with a rating that matches the lowest expected nighttime temperature at your campsite.
Overall, double sleeping bags offer a comfortable and versatile option for couples or families who enjoy outdoor adventures together. With the right combination of shape, material, and features, you can ensure a cosy and enjoyable night's sleep under the stars.
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Backpacking vs camping bags
When it comes to choosing between a backpacking bag and a camping bag, there are several factors to consider. Both camping and backpacking require a lot of the same gear, including a tent, a sleep system, and something to cook with. However, the primary difference between the two lies in how you get to your campsite and the restrictions on your gear.
Backpacking Bags
For backpacking, you hike to your campsite on foot and carry everything you need for the trip in your backpack. This means that your gear must be lightweight and compact, and you won't be able to bring any non-essential items. Backpacking bags tend to be lighter and more snug than camping bags to facilitate ease of carrying and movement during hiking. The size of your backpacking bag will depend on the length of your trip and how much weight and bulk you want to carry. Most backpacking bags range from 45 to 80 litres, with larger bags accommodating longer trips, winter treks, and extra clothing. Backpacking bags may also include features such as pockets, sleeping bag compartments, and rain covers.
Camping Bags
Camping bags, on the other hand, offer more room to move around in, and you don't have to worry as much about weight or fitting your bag into a pack. When camping, you typically drive to your campsite, allowing you to bring larger items and home comforts, such as a coffee maker or a bigger tent. Camping bags can be more plush and roomy, and you have the option to bring additional items such as a cooler full of food.
Sleeping Quilts
An alternative to both backpacking and camping bags is a sleeping quilt, also known as a camping blanket. Sleeping quilts are becoming increasingly popular among backpackers due to their lightweight, compact design, wide range of motion, and breathability. They use less material and have fewer hardware components, such as zippers, making them more packable and versatile. Sleeping quilts can be structured in multiple ways, such as having a closed-foot box or being tied together into a sleeping bag structure for increased warmth. However, in colder temperatures, a sleeping quilt may not provide the same level of insulation as a traditional sleeping bag.
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Budget vs premium bags
When it comes to budget versus premium sleeping bags, there are several factors to consider. Firstly, budget sleeping bags are designed to be more affordable, typically costing less than £200, and even more ideally, under £100. On the other hand, premium sleeping bags can be significantly more expensive, with some ultra-premium options available.
One of the main differences between budget and premium sleeping bags is comfort. Premium sleeping bags tend to offer a higher level of comfort, with features like lightweight and snug designs, as well as high-quality insulation that keeps you warm and cosy. For example, the premium Western Mountaineering MegaLite model provides an outstanding level of comfort with its 12 ounces of 850+ fill power. In contrast, budget sleeping bags may sacrifice comfort to keep costs down. For instance, the Kelty Cosmic light budget bag may not offer the same level of comfort as its premium counterparts.
Another consideration is the weight and packed size of the sleeping bag. Budget sleeping bags tend to be heavier and bulkier, often taking up more space in your backpack. Synthetic fillings, which are commonly used in budget bags, weigh more than down fillings. Additionally, some budget brands may reduce the width and length of their bags to save costs, so it's essential to check the size details to ensure a comfortable fit. Premium sleeping bags, on the other hand, often prioritise lightweight and compact designs, making them more suitable for backpacking trips or extended outdoor adventures.
Temperature ratings are another important factor to consider. While both budget and premium sleeping bags offer options for different temperature ranges, premium bags may provide a wider range of temperature ratings and better insulation. For example, the Therm-a-Rest Hyperion 32 premium bag is designed for ultralight warmth. However, budget bags can also provide adequate warmth, and some even offer water-repellent treatments (DWR) to keep you dry and comfortable in damp conditions.
Lastly, durability and quality should be considered. Premium sleeping bags are generally made with higher-quality materials and craftsmanship, ensuring they last longer and perform better over time. Budget sleeping bags may be more prone to wear and tear, especially with frequent use, but they can still offer good value for money, especially for occasional campers or those new to camping.
In summary, budget sleeping bags offer affordability and accessibility, while premium sleeping bags provide enhanced comfort, lightweight designs, superior insulation, and higher-quality materials. The choice between budget and premium depends on individual needs, preferences, and budget constraints.
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Frequently asked questions
Baby sleeping bags are considered safe as they prevent your baby’s head from being covered by wriggling under bedding. However, they must be manufactured to the highest standard and adhere to safety guidelines.
Sleep bags should carry a safety standard marking (BS EN 16781:2018).
The National Child Mortality Database recommends that families and carers consider the safety standards and comfort of the baby when choosing a baby sleeping bag.
A Which? safety test revealed that only three out of 15 baby sleeping bags from well-known brands and online marketplaces passed all their stringent tests.










































