How To Wash Your Sleeping Bag At Home

can you wash sleeping bags uk

Sleeping bags are often one of the biggest investments in our adventure gear, so it's natural to feel worried about washing them incorrectly and causing damage. However, not washing your sleeping bag can also be detrimental, as dirt, body oils, and other contaminants can accumulate on the outer shell and filling, compromising the insulation and leaving it smelling unpleasant. Therefore, it is important to know how to wash your sleeping bag correctly to maintain its performance and longevity. This includes considerations such as frequency of washing, use of professional services or home washing machines, and specific techniques for drying.

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How to wash a sleeping bag

It is important to keep your sleeping bag clean, as dirt and grime can compromise the insulation and leave it smelling unpleasant. Body oils and greasy residues can also migrate into the filling, compromising the loft and warmth of the bag.

Firstly, check the seams, zippers and drawcords of your bag to ensure they are in good shape. If you notice any tears or rips, it may be best to take it to a professional to be repaired and cleaned. If you choose to wash and dry your bag yourself, be aware that it will take at least two to three hours to dry, with down fillings taking longer than synthetic.

If you are handwashing your sleeping bag, fill a clean bathtub with warm water and add a soap specifically formulated for down or synthetic fillings, such as Nikwax Down Wash Direct. Turn the bag inside out and place it in the water, ensuring it is completely covered. Gently knead the bag to force the water and soap through it, being careful not to pick up the bag as the weight of the water can tear the stitching. Drain the dirty water and carefully roll up the bag to squeeze out the excess. Refill the tub with clean water and repeat the process until there are no more suds.

If you are machine washing your sleeping bag, use a front-loading washer (or a top-loading machine without an agitator) and wash on a gentle cycle with warm or cold water and a small amount of appropriate soap. Avoid using powdered detergent as this does not dissolve properly in cold water. You can add a few damp articles of clothing, such as towels or t-shirts, to help balance the spin of the machine. Rinse the bag at least twice to ensure all soap residue is removed, or run it through a second wash cycle without detergent.

When drying your sleeping bag, it is recommended to use a commercial-size dryer, as this has a larger capacity that allows the bag to fully loft while tumbling. If using a home dryer, set it to low heat as high heat can melt delicate nylon fabrics. You can also air-dry your sleeping bag by laying it flat on a clean surface in the sun or partial shade. You may need to manually break up clumps of insulation as the bag dries.

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How to dry a sleeping bag

If you've washed your sleeping bag in a machine, it's important to support the entire bag when removing it from the washer to avoid straining and ripping the seams. Gently squeeze out the excess water before drying.

Synthetic sleeping bags will dry much quicker than down sleeping bags. A synthetic bag should take at least an hour to dry, whereas a down bag will take several hours.

If you're using a dryer, opt for a commercial-size one, as these have larger capacities that allow fully lofted sleeping bags to tumble. If you don't have access to a commercial dryer, you can use a home dryer, but be sure to set it to low heat to avoid melting the delicate nylon fabric.

For down sleeping bags, add two to three tennis balls to the dryer. The tennis balls help break up clumps of down and speed up the drying process. While this step is optional for synthetic bags, it can still be helpful.

If you don't have access to a dryer, you can air dry your sleeping bag. Lay the bag flat on a clean surface in an area with low humidity and no direct sunlight. You can also hang the bag up to dry, but be careful to distribute the weight evenly to avoid putting too much stress on the fabric.

To ensure your bag is completely dry, let it air out overnight after it feels dry to the touch.

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How to store a sleeping bag

To store a sleeping bag, it is important to first clean it thoroughly. Natural body oils, dirt, and grime can build up on the outer fabric and the insulation fibres, reducing the bag's efficacy. After cleaning, follow these steps:

Step 1: Dry the Sleeping Bag

Completely unzip the bag and let it hang in a cool, dry place for at least 4 to 6 hours. If airing your bag indoors, ensure the room is well-ventilated and avoid direct sunlight, as UV rays can damage the exterior coating and materials. You can use a fan or dehumidifier to speed up the drying process.

Step 2: Choose a Suitable Storage Container

Sleeping bags should be stored in a large, breathable cotton or mesh sack. Most bags come with a jumbo cotton storage bag that is ideal for this purpose. Alternatively, you can use a king-size pillowcase or purchase a cotton or mesh storage sack separately. Avoid storing your bag in its stuff sack or a compression sack, as this can damage the fill and reduce its loft over time.

Step 3: Store in a Cool, Dry Location

Find a roomy corner in a closet or under your bed to store the sleeping bag. Ensure the storage area is cool, dry, and well-ventilated. Avoid damp basements and unheated or uncooled spaces, such as garages and attics, as moisture and temperature extremes can damage the bag.

Additional Tips:

  • If space is limited, consider hanging your sleeping bag in a closet or from a curtain rod.
  • Periodically check your sleeping bag for any damage to the seams, zippers, and drawcords.
  • Reapply a durable water repellent (DWR) finish to the bag's shell as needed to maintain water repellency.

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How to know when a sleeping bag needs washing

Keeping your sleeping bag clean will significantly extend its life and improve its performance, and will make sleeping in it more pleasant.

Firstly, check your bag periodically to make sure the seams, zippers and drawcords are in good shape. Feel the insulation to see if it's evenly distributed. Over time, down can settle unevenly; sometimes a wash and dry will alleviate that.

If the insulation seems to be clumping up, you are at the stage where the lofting insulation is being compromised. Grime of this kind first shows up around the hood and neck area, but the effect on the insulation is out of sight on the inside of the bag.

A dirty sleeping bag is also a less-warm sleeping bag. Oils and salts from your perspiration, plus grime from the outside world (including fine-grain sand) can remain inside the bag and compromise the insulation, and leave it smelling less-than-fresh.

If your sleeping bag is darkened with grime or losing its fluffiness (loft), then it's time to give it a good washing. The buildup of body oils and dirt over time will migrate into the fill (both down and synthetic) and begin to compromise your bag's loft and warmth.

There's no need to wash your bag after every trip, but it's a good idea to launder it at least once a year. If you're using your bag more frequently, you may want to wash it more often than annually. A good time to wash your bag is before you store it at the end of the season or for an extended period of time. Body oils and other greasy residues will stay on fabrics and fibres if the bag is packed away in storage without a good wash first.

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How to hand wash a sleeping bag

Hand washing a sleeping bag is a tedious chore and should only be done if a machine wash is not an option. However, if you need to hand wash your sleeping bag, follow the steps below:

Firstly, you will need to identify a place large enough to hold water, detergent, and the sleeping bag, that also allows enough space for your hands to move through the water. A bathtub, a large washing basin, or a kiddie pool are good choices for this operation.

Next, fill the basin about halfway up with warm water and add a small amount of no-rinse detergent, following the manufacturer's instructions on dosage. You can use specialist down cleaning products such as Grangers Down Wash, or a gentle, non-detergent soap that is made for washing down- and synthetic-filled items.

Now, turn the sleeping bag inside out and place it in the tub. Gently knead the sleeping bag to force water and detergent through it, ensuring the water and detergent penetrate its fibres and dislodge dirt and grime. Do not pick up the bag during this process as the weight of the water can tear out the stitching. Allow the bag to soak for about an hour, then drain the detergent solution.

Once you've drained the tub, carefully roll up the bag to squeeze out the water. Refill the tub with clean water and knead the bag to force the clean water through it, repeating until there are no more suds.

Finally, slide your hands under the wet sleeping bag and gather it into a ball so that the weight of the wet bag does not strain the seams when carrying it to the dryer, clothes line, or drying rack.

Remember, it is critical that a sleeping bag is completely dry before it is stored, so leave it out to dry for at least two to three hours.

Frequently asked questions

Yes, you can wash your sleeping bag. However, it is recommended to wash it only once a year, or more if you use it regularly.

You can either hand wash your sleeping bag in a bathtub or use a commercial-size washer and dryer at a laundromat. If you decide to hand wash your sleeping bag, fill the tub with warm water and add the recommended amount of soap. Gently knead the sleeping bag, drain the water, and then carefully roll it up to squeeze out the excess water. Repeat this process until all the soap is gone.

Avoid using conventional laundry detergent as the fillers and brighteners can prevent the sleeping bag from lofting. Instead, use a soap specifically formulated for down or a performance wash product for synthetics.

There are no rules about how often you should wash your sleeping bag. However, if you notice a faint odour or the presence of dirt and grime, it is probably time to give it a wash.

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