How to Wash a Sleeping Bag?

Sleeping bags, the quintessential camping companion, have been by our side during countless adventures, from starlit deserts to dense alpine forests. They’ve kept us warm, sheltered us from the elements, and provided comfort far away from our cozy beds at home. Given their significance, it’s essential that we give them the care they deserve. When it comes to maintenance, knowing how to properly wash them ensures they remain in prime condition for many escapades to come. Through this guide “How to Wash a Sleeping Bag?”, I’ll share insights and tips to help you navigate the cleaning process without damaging your trusty cocoon.

Recognizing the Need for a Wash

While some might argue, “I’ve only used it a few times, it’s still clean,” it’s vital to understand that washing a sleeping bag isn’t solely about removing visible dirt. The natural oils from our skin, sweat, and other micro-elements can reduce its insulation capability over time. If you wake up and find your bag less fluffy or notice a slightly funky smell, that’s nature’s way of saying it’s time for a wash. Moreover, prolonged dirt can also deteriorate the fabric. It’s not just about aesthetics; it’s about preserving functionality and prolonging life.

Preliminary Steps Before Washing

Before you plunge your sleeping bag into water, take a moment to prepare. Start by inspecting it meticulously for any signs of wear and tear. Addressing small problems, like a minor tear, before washing can prevent them from worsening during the process. Empty all pockets – you’d be surprised at the forgotten treasures (or candy wrappers) that can emerge. But the most crucial step is reading the care label. Manufacturers have spent time understanding the fabric and its reactions to different cleaning methods, so their guidelines are an invaluable resource.

Materials Needed for Washing

You might think, “It’s just a wash, why do I need special materials?” but remember, a sleeping bag isn’t your average bedroom blanket. It’s designed with specific materials that require particular care. Standard detergents might be too harsh and can strip away essential oils from down fillings or deteriorate synthetic fibers. Opt for a mild, specially-designed detergent for sleeping bags. For those opting for a hand wash, a soft brush can be useful for spot treatments. And for the machine washers, ensure your machine is spacious enough. Cramming the sleeping bag can lead to uneven washing and, in some cases, damage.

Step-by-Step Guide on How to Wash a Sleeping Bag


  1. Prepare the Sleeping Bag:
    • Unzip and lay the sleeping bag flat.
    • Empty all pockets and ensure no loose items are attached.
    • Inspect for any damages or tears and fix them before washing.
  2. Gather Necessary Materials:
    • A large tub or bathtub.
    • Mild detergent specially designed for sleeping bags or gentle fabrics.
    • Soft scrub brush for spot cleaning.
    • Cold water.
  3. Fill the Tub:
    • Use cold water to fill the tub, ensuring there’s enough water to submerge the entire sleeping bag.
  4. Add Detergent:
    • Mix in the mild detergent according to its label’s instructions. Stir well to ensure it’s dissolved.
  5. Submerge the Sleeping Bag:
    • Gently place the sleeping bag into the water, ensuring it’s fully submerged.
    • Press down to release any air pockets and allow the water to penetrate the fabric.
  6. Gentle Scrubbing:
    • For stubborn stains or spots, use the soft brush to gently scrub the area.
  7. Soak:
    • Let the sleeping bag soak for at least 1 hour, occasionally agitating it to help remove dirt.
  8. Rinse:
    • Drain the tub and fill it with cold water.
    • Press down on the sleeping bag to rinse out the detergent, then drain.
    • Repeat the rinse process 2-3 times until all detergent is removed.
  9. Drying:
    • Gently press the sleeping bag to remove excess water. Do not wring it.
    • Lay it flat on a clean surface, preferably outdoors away from direct sunlight.
    • Periodically flip the bag to ensure even drying. Depending on the weather, this might take a while.
  10. Storage:
    • Once completely dry, store your sleeping bag in a dry place, ideally in a larger storage sack to maintain its loft.

Remember, frequent washing can reduce the life span of your sleeping bag, so only wash it when necessary. Proper storage and airing out after each use can keep it fresh for longer periods.

Sleeping Bag Liner: Ensuring Restful Nights in the Great Outdoors


  1. Read the Label:
    • Always check the sleeping bag’s care label first. Some bags may not be suitable for machine washing.
  2. Prepare the Sleeping Bag:
    • Unzip the sleeping bag completely.
    • Empty all pockets and ensure no items are inside or attached.
    • Repair any small tears or holes to prevent them from enlarging during the wash.
  3. Select the Right Machine:
    • Use a front-loading washer. The agitator in top-loading machines can damage the sleeping bag.
    • If your home machine isn’t big enough, consider visiting a laundromat with larger capacity washers.
  4. Detergent Selection:
    • Use a mild detergent, preferably one specifically designed for sleeping bags or down materials if your bag is filled with down.
    • Avoid fabric softeners and bleach.
  5. Machine Settings:
    • Set the machine to a delicate or gentle cycle.
    • Use cold water to preserve the integrity of the sleeping bag’s materials.
  6. Load the Machine:
    • Place the sleeping bag inside, making sure it’s evenly distributed.
    • To maintain balance, add a few additional items, like towels.
  7. Run the Wash Cycle:
    • Start the machine and allow it to run the full cycle.
  8. Rinse Thoroughly:
    • After the initial cycle, run an additional rinse cycle to ensure all detergent is removed.
  9. Drying:
    • Transfer the sleeping bag to a tumble dryer.
    • Set on low heat and add a few tennis balls to the dryer. This helps break up down clumps and restores fluffiness.
    • Make sure the sleeping bag is thoroughly dry to prevent mold. This may take several hours.
  10. Inspect After Drying:
    • Check the sleeping bag for any clumps, especially if it’s a down bag. If clumps are found, break them up gently with your hands.
  11. Storage:
    • Once you’re certain the sleeping bag is 100% dry, store it in a cool, dry place. Using a larger storage sack can help maintain its loft.

Remember, while machine washing is convenient, it’s essential to handle your sleeping bag with care to ensure its longevity. Machine wash only when necessary, and always follow the manufacturer’s guidelines.

Special Mention: Down Sleeping Bags

Down sleeping bags are the epitome of luxury when it comes to camping gear. Filled with natural feathers, they offer exceptional insulation and are incredibly lightweight, making them a favorite among many adventurers. However, their unique composition also means they require a tad more attention during cleaning. The natural oils in down feathers can break down with the use of harsh detergents, compromising the bag’s insulating capabilities. Also, down clumps when wet, and if not dried correctly, these clumps can remain, diminishing the bag’s effectiveness in keeping you warm.

Drying the Sleeping Bag

Drying is arguably the most crucial part of the washing process, especially for down sleeping bags. Start by gently pressing the bag to remove excess water, but avoid wringing it which can damage the fill material. If you’re using a tumble dryer, always use low heat. High temperatures can melt synthetic fabrics and degrade down filling. To help fluff up a down sleeping bag, throw in some tennis balls; they help break up the down clusters. If you’re air-drying, lay the bag flat and ensure it’s fully dry inside and out before storing. This can take 24 hours or more, so be patient.

Storage Tips Post-Wash

Once your sleeping bag is clean and thoroughly dry, it’s vital to store it correctly to maintain its structure and longevity. Avoid keeping it in the stuff sack for long periods, as this can compress the fill, reducing its insulating power. Instead, store it in a large cotton storage bag or hang it up in a closet. Ensure the storage area is dry and away from direct sunlight, which can degrade the fabric over time. Periodically shake it out and fluff it to keep the fill evenly distributed.

Common Mistakes to Avoid

Taking care of a sleeping bag requires some know-how, and there are a few pitfalls that many fall into. Here are some common mistakes to steer clear of:

  • Overwashing: This can degrade the materials faster. Only wash your sleeping bag when absolutely necessary.
  • Using Fabric Softeners: These can leave a residue on the bag that affects its water repellency and breathability.
  • Storing Wet or Damp: This is the fastest way to invite mold or mildew, which can ruin your sleeping bag.
  • Direct Sunlight Drying: While it might be tempting to dry your bag under the sun, UV rays can degrade the fabric. If air drying, do it in the shade.
  • Ignoring Small Tears: Small rips or tears can quickly become larger issues if not addressed immediately. Repair them as soon as they’re noticed to maintain the bag’s integrity.

Caring for your sleeping bag ensures it remains a cozy, reliable companion for many adventures to come. Knowing how to wash and maintain it correctly ensures you get the most out of your investment.


Can sleeping bags be ironed?
No, the heat can damage the insulation.

How frequently should I wash my sleeping bag?
After every significant trip or if it’s visibly dirty.

Can all sleeping bags be machine-washed?
Not all. Always refer to the care label.

Do sleeping bags shrink after washing?
If not subjected to high heat during drying, they shouldn’t.

Are there specialized services for washing sleeping bags?
Yes, some professional cleaners specialize in outdoor gear.

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I'm Martina, your guide through the complex world of sleep. As a sleep specialist and a healthy lifestyle enthusiast, my mission is to provide you with practical and motivational insights into improving sleep for all ages. From children's sleep training to adult sleep hygiene, and even finding the best sleep aids on the market, I've got you covered.So join me as we journey together towards better sleep and brighter days!

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