Miya Pearson
When it comes to choosing a sleeping bag for a trip to Yosemite, there are a few key factors to consider. Firstly, the temperature rating of the sleeping bag is crucial – it can get quite cold at higher elevations, even during the summer months. A 10°C (50°F) bag might be sufficient for some, but others recommend a 0°C (32°F) bag to stay comfortable throughout the night. Additionally, the time of year and elevation will impact your decision – a 20°F bag could be a good option for colder months, while a 30°F or 40°F bag might be more suitable for warmer weather, especially at lower elevations. It's also important to consider your personal preference for sleeping temperature and whether you plan to backpack or car camp, as this will affect the weight and bulk of the sleeping bag you choose.
| Characteristics | Values |
|---|---|
| Sleeping bag temperature rating | 0°C, 10°C, 15°F, 20°F, 30°F, 35°F, 40°F, 50°F, 55°F |
| Time of year | May, June, July, August |
| Elevation | 2000 ft to 13000 ft |
| Additional items | Sleeping bag liners, sleeping pads, warm clothing (wool socks, beanie, gloves, hat, hoodie), hand warmers |
| Sleeping bag type | Down-filled, lightweight, two-person |
| Brands | Zpacks, Marmot, North Face, Mountain Hardwear |
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What You'll Learn
Sleeping bag temperature ratings for Yosemite
The best sleeping bag temperature rating for Yosemite depends on several factors, including the time of year, elevation, and your personal preference for sleeping temperature.
For summer trips to Yosemite, a sleeping bag rated to 30-40°F (or 4-5°C) should suffice. However, if you tend to sleep cold, you may want to opt for a 20°F bag to ensure warmth. Some people even use a 40°F bag in the summer, but this may be too warm for some. If you're camping in the valley, you may want to consider an even higher rating, as lower-rated bags can cause you to sweat.
For trips during other seasons, a 20°F bag is a good option to keep you warm, especially if you're camping at higher elevations. A 15°F bag is also a good choice for colder months, and you can always add layers if needed. If you're camping in May, a 0°C bag may be a good option, especially if you're a cold sleeper.
It's important to consider the elevation of your campsite, as temperatures can vary significantly. For example, Yosemite Valley sits at 4,000 ft, while the rims can be 7,000-8,000 ft or higher. The Pohono Trail, in particular, reaches 7,200 ft, and campers have reported temperatures of around 50°F, with some nights being colder.
Additionally, consider your sleeping habits and preferences. If you tend to sleep warm, a higher-rated bag 30-40°F may be suitable, even in colder months. If you sleep cold, opting for a lower-rated bag 15-20°F and adding layers is a safe choice.
Finally, don't forget about your sleeping pad and clothing. A good sleeping pad can add insulation, while layers of clothing, including wool socks, a beanie, and a hoodie, can help you adjust to the temperature.
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Sleeping bag weight and bulk
For example, a 10°C (50°F) bag will be lighter and less bulky than a 0°C (32°F) bag, but it may not provide enough warmth for Yosemite's cold nights. A 0°C bag is a better option for colder temperatures, but it will be bulkier and heavier to carry.
If you're looking for a versatile option, a 20°F bag can be a good choice. It will be warmer than a 30°F bag and can be unzipped if you get too hot. A 20°F bag will be heavier than a 30°F bag, but it might be worth the extra weight to ensure a comfortable night's sleep. Additionally, some 20°F bags, such as the Z-Packs bag, are designed to pack small and weigh around 20 oz, minimizing bulk and weight while still providing warmth.
The temperature in Yosemite can vary significantly, especially at different elevations. The Yosemite Valley is at 4000 ft, while the rims can be as high as 7000-8000 ft. The Pohono Trail, for instance, has a high point of 7200 ft, and temperatures can drop to around 50°F (10°C). Therefore, it's important to consider the specific areas you'll be visiting and the time of year you'll be going.
For backpackers concerned about weight and bulk, lightweight cold-weather bags are available. These bags are designed to be packed easily and carried on hiking trips. Additionally, some bags are specifically designed for women and come in shorter sizes, such as the Western Mountaineering MegaLite or the Western Mountaineering AlpinLite.
Ultimately, the decision on which sleeping bag to choose depends on your personal preferences, sleeping habits, and the specific details of your trip. It's always a good idea to check the nighttime temperatures for your trip dates and adjust your gear accordingly.
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Sleeping bag liners
Liners come in different shapes, including mummy-shaped and rectangular. The former is designed to be used inside a sleeping bag, while the latter can be used independently or inside a rectangular sleeping bag. Liners provide 5° to 15°F of extra warmth, depending on the material. Synthetic liners are moisture-wicking and breathable, making them ideal for humid conditions and restless sleepers. Insulated liners can add up to 25°F of warmth, allowing you to extend the range of a lightweight bag. They dry 50% faster than cotton due to their hollow-core fibre insulation.
If you are camping in bug-infested areas, consider a liner with built-in bug protection, such as the Insect Shield® offered by Sea to Summit.
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$39.99 $51.99
Sleeping bag pads
When it comes to sleeping bag pads, there are a few options to choose from. The first is a closed-cell foam pad. These pads are lightweight, durable, and affordable, making them ideal for backpackers and minimalist campers. They also provide excellent insulation and are virtually indestructible, so you won't have to worry about them getting damaged on your travels. However, they are not known for being very comfortable.
Another option is a self-inflating sleeping pad. These pads offer unmatched comfort and convenience. They have built-in air chambers that inflate with a simple twist of a valve, providing a plush sleeping surface similar to your bed at home. They are perfect for car camping or campers who prioritize comfort over weight savings. However, they are bulkier and heavier than air-construction pads, and they can be more expensive.
If you're looking for something lightweight and packable, an air pad might be a good option. These pads are comfortable and can be quite warm, depending on the R-value. However, they are generally more expensive, and there is a risk of punctures or rips.
When choosing a sleeping pad, it's important to consider the R-value, which indicates the amount of insulation the pad provides. A higher R-value means more insulation, so look for pads with an R-value of 2.0 or higher if you're camping in cold weather.
Some recommended sleeping pads include the Nemo Tensor All-Season Ultralight Insulated, which is lightweight, comfortable, and packs down small, and the Therm-a-Rest NeoAir Xlite NXT, which is a great choice for those prioritizing weight savings. The Exped Ultra 3R is also an option, with its uniquely shaped inflation bag that allows for higher pressure inflation.
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Clothing to wear with your sleeping bag
When preparing for a camping trip to Yosemite, it's important to consider the right clothing to wear with your sleeping bag. The temperature can vary in the park, so it's essential to be prepared for both cold and warm nights. Here are some tips to help you decide what to wear:
Clothing Choices
Firstly, consider the temperature rating of your sleeping bag. If you have a lower-rated bag, you may need to wear warmer clothes inside to stay comfortable. Conversely, if you have a higher-rated bag, you may only need lightweight clothing. The key is to maintain a comfortable body temperature throughout the night.
Layers
The general consensus among campers and hikers is that layers are essential. It is recommended to bring clothing that can be easily layered, such as long underwear, long-sleeved shirts, and leggings or lightweight pants. This will allow you to adjust your clothing as needed throughout the night.
Materials
When choosing clothing to wear inside your sleeping bag, consider materials that retain warmth even when wet, such as wool and silk. Wool socks, in particular, are highly recommended for keeping your feet warm. Synthetic materials are also a good option, as they can provide warmth while remaining lightweight and breathable.
Hat and Gloves
Don't forget that your head and hands can lose a significant amount of body heat. Bring a warm hat, such as a beanie, and gloves or mittens to wear inside your sleeping bag if needed. These can easily be removed if you get too warm, but they can make a big difference in keeping you comfortable during colder nights.
Footwear
In addition to wool socks, consider bringing dedicated camp footwear, such as slippers or camp shoes, to wear inside your sleeping bag. This will allow you to take off your hiking boots or shoes while keeping your feet warm and comfortable.
Personal Preference
Ultimately, the clothing you choose to wear inside your sleeping bag will depend on your personal preference and comfort level. Some people prefer to sleep directly in their clothing, while others prefer to bring separate sleepwear. If you tend to sleep cold, consider bringing warmer clothing or an extra layer.
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Frequently asked questions
A 10°C bag would be survivable but not comfortable. A 0°C bag is a better option.
A 20°F bag is a good option for most elevations. If you're car camping, you can bring an extra blanket.
A 20°F bag is a good option, but if you want to save weight, a 30°F bag will be fine for most sleepers. A 40°F bag will likely be too hot in the valley.
Consider whether you're a warm or cold sleeper. If you're car camping, you can bring extra layers or a blanket to keep warm. If you're backpacking, you'll need a lightweight bag and good insulation.
