
Sewing your own sleeping bag is a fun and rewarding project that can provide you with a customized and cost-effective product. The process is similar to making a duvet cover, but with a few additional steps, such as attaching a zipper and adding insulation. The first step is to choose the type of sleeping bag you want to make (mummy, rectangular, or semi-rectangular) and determine the necessary dimensions. You'll then need to gather your supplies, including fabric, batting, and a zipper. Once you have your materials, you can begin cutting and sewing your fabric, following a step-by-step guide to ensure a professional finish.
| Characteristics | Values |
|---|---|
| Similarity | Making a sleeping bag is similar to making a duvet cover, but with a zipper. |
| Fabric | Outer fabric, inner fabric, and batting are required. The type and amount of fabric depend on the bag's dimensions and whether it is for an adult or child. |
| Dimensions | The bag's dimensions depend on the type (mummy, rectangular, or semi-rectangular) and user (adult or child). |
| Zipper | A zipper is attached to the bag for easy access. The zipper's placement and installation method may vary. |
| Ironing | Ironing the open edge helps it fold neatly before pinning and sewing. |
| Stitching | Straight and diagonal stitching are used at different stages, and a sewing machine can be utilized. |
| Batting | Batting is used for insulation and comfort. Its placement and number of layers can vary based on the bag's purpose and user. |
| Customization | Sleeping bags can be customized with hand-tying, embroidery, painting, or other decorative techniques. |
| Purpose | DIY sleeping bags offer a cost-effective, customizable, and rewarding alternative to store-bought options. |
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What You'll Learn

Choosing the type and size of sleeping bag
Choosing the right type and size of sleeping bag is crucial for a comfortable and warm outdoor experience. Here are some factors to consider when making your selection:
Type of Sleeping Bag
The type of sleeping bag you choose will depend on your specific needs and preferences. There are three basic shapes to choose from:
- Mummy: This shape is the most popular as it offers a snug fit that tapers toward the feet, making it the warmest option. It is also lightweight and packs easily, making it ideal for backpacking or technical adventures requiring packability and warmth. However, it may feel restrictive due to its narrow design.
- Rectangular: This shape offers more room and freedom of movement, making it a preferred choice for warm-weather car campers who prioritize comfort over warmth-to-weight efficiency.
- Semi-Rectangular: This is a hybrid design that offers a balance between warmth and comfort. It is suitable for fair-weather campers who need warmth but also desire extra room.
Size of Sleeping Bag
When it comes to size, a proper fit is critical to the bag's warmth, comfort, and overall performance. Here are some considerations:
- Height: The length of the sleeping bag should correspond with your height. For example, if you are 6 feet tall, choose a bag that is roughly the same length or a few inches longer to allow for a correct fit when your body spreads out while sleeping.
- Body Type: Consider your body type and whether you need a bag with more room. A bag that is too small can compress the insulation, reducing its effectiveness, while a bag that is too large can waste heat.
- Activity: The shape and size of your sleeping bag should also reflect the style of camping or outdoor activity you plan to do. If you prioritize lightweight packability and warmth, a mummy bag is ideal. If you prefer more room and comfort, a rectangular bag might be better.
By considering these factors, you can choose the type and size of sleeping bag that will provide you with a comfortable and warm experience during your outdoor adventures.
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Selecting the right fabric
The fabric you select for your sleeping bag will depend on the season and intended use. For a summer bag, choose a lightweight, breathable fabric such as cotton or jersey. If you're looking for a bag that will keep you warm in winter, opt for flannel or quilted fabrics.
If you're making a sleeping bag for a baby, it's important to avoid synthetic materials that might irritate their skin. Pre-wash your fabric before sewing to prevent shrinkage, and wash the finished bag with neutral detergent. Dry the bag by hanging it up or use a gentle setting in the dryer.
For the outer fabric, consider a durable material that can withstand wear and tear. Options include duck cloth, canvas, or outdoor fabric. If you're making a mummy-style sleeping bag, you'll need a fabric that can be easily sewn into a tapered shape.
For the inner fabric, choose a soft and comfortable material. Fleece is a good option for both warmth and comfort. You can also use flannel or a fun print to add a pop of colour or design to your sleeping bag.
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Sewing the fabric together
Sewing a sleeping bag is similar to sewing a duvet cover. You will be sewing all the way around the perimeter, folding it in half, and attaching a zipper.
First, cut your fabric to the desired size. You will need two pieces of outer shell fabric and two pieces of lining fabric. Cut two pieces of insulation to the same size as your outer shell and lining pieces.
Lay one piece of outer shell fabric, right side up, on a flat surface. Place one piece of insulation on top, followed by one piece of lining fabric, right side down. Pin the layers together. Sew around the edges of the pinned layers, leaving an opening for turning the fabric right side out.
Turn the bag right side out and sew the opening closed. Sew a straight line down the middle of the bag from top to bottom to create two "legs" and keep the insulation in place.
Now you can attach your zipper. Fold your sleeping bag in half with the right sides facing together. Pin one edge of the zipper to the edge of the bag, with the right sides of the zipper and bag facing each other and the long edges lined up. Sew the zipper in place.
Starting near the bottom of the zipper, pin along the bag so that the edges are lined up. Place the bag under your presser foot and sew about 1/2" over the long end of the zipper. Backstitch and sew diagonally before pivoting and sewing down to the corner of the bag. Pivot again and continue stitching along the length of the bag.
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Adding a zipper
Firstly, decide on the placement of the zipper. You can opt for the traditional method, placing the zipper along the centre seam of the sleeping bag, or experiment with different placements, such as a longer zipper that goes down the side and across the bottom.
Once you've decided on the placement, open the zipper completely and place it at the bottom of the sleeping bag. Ensure that the teeth of the zipper slightly extend past the edge of the bag. Pin the zipper tape in place, with the right side of the tape facing the inside of the bag. This step will ensure that the zipper is securely attached and aligned correctly.
Now, you can start sewing one side of the zipper to the bag. It is important to keep the needle about 1/8" inside from the zipper teeth and always sew with the zipper tape facing you. This will ensure a neat and secure stitch. Sew along the bottom, curving at the corner, and up to the top.
After sewing one side, it's time to work on the other side of the zipper. Fold your sleeping bag in half, with the right sides facing each other, and pin the remaining edge of the zipper to the bag's open edge. Ensure that the long edges are lined up and pin them together every 4". This step will ensure that the zipper is attached evenly and securely.
Finally, enclose the bottom of your sleeping bag. Start near the bottom of the zipper, pinning along the bag to align the edges. Place the bag under the presser foot of your sewing machine and start sewing about 1/2" over the long ends of the zipper. Backstitch and sew diagonally for added strength. Pivot and continue sewing down to the corner of the bag, then along the remaining length.
Your sleeping bag now has a functional zipper, providing easy access and secure closure.
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Finalising the sleeping bag
Now that you've done the initial sewing, it's time to finalise your sleeping bag. The first step is to iron the open edge so that it folds into itself neatly. Pin it closed, and sew it shut with your machine, ensuring you sew it closer to the edge than usual. Next, place your sleeping bag on a flat surface so that the middle seam runs vertically. If you plan to hand-tie your bag, skip this step. Otherwise, use yardsticks to divide your panel into three or more equal sections. Utilise straight pins to mark where your stitched lines will be, ensuring you do this across the entire bag for even spacing. This process will help keep the batting in place during washes and adds texture.
At this point, you can add a zipper to your sleeping bag. Fold the bag in half, with the right sides facing each other, and pin the zipper's edge to the bag's edge. Ensure the long edges are aligned, pinning every 4". Sew the zipper in, then enclose the bag's bottom by pinning along the edge, aligning the edges. Place your bag under the presser foot, and begin sewing about 1/2" over the zipper's long ends. Backstitch and sew diagonally for about 1/2", then pivot and sew down to the bag's corner.
Pivot the bag again and continue stitching along the remaining length. To finish the binding, fold it over the raw edges, press it, and secure it with wonder clips. Stitch the binding in place, and your sleeping bag is now complete!
You can also add extra features to your sleeping bag, such as a hood or a fun curved detail at the top opening. Additionally, feel free to make a matching pillow to go with your newly crafted sleeping bag!
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Frequently asked questions
First, choose the type of sleeping bag you want to make (mummy, rectangular, or semi-rectangular) and determine the dimensions. Cut the fabric and insulation to the desired size.
Place one piece of outer shell fabric right side up on a flat surface. Place one piece of insulation on top of the fabric, followed by one piece of lining fabric right side down. Pin the layers together.
Sew around the edges of the pinned layers, leaving an opening for turning the fabric right side out.
Fold your sleeping bag in half with the right sides facing together and pin the other edge of your zipper to the other edge of the bag. Pin every 4". Sew the zipper in, then enclose the bottom of the bag.
Iron your open edge so that it folds into itself nicely and pin it closed. Place your sleeping bag on the floor so the middle seam runs vertically. Use yardsticks to split your panel into three or more equal sections and pin where your stitched lines will be.









































