Sleeping Bag Losing Feathers

“My sleeping bag loses feathers, it is normal?”, is often. The answer is: Yes. And we will try to understand and to see why a sleeping bag or a jacket can lose a few feathers with time.

Use, quality of the feather, type of packing, compression, wear over time, many parameters can affect the fact that a sleeping bag can lose its feathers. But immediately raise a doubt…

Some sleeping bags do not lose their feathers…

Yes, it is the synthetic down sleeping bags!
For use in a humid environment, it is recommended to use a sleeping bag in synthetic filling. Gold synthetic, by definition, does not have a natural, elements such as down or feather, who are often from the geese or ducks.

Down, feathers, and the feathery

Now let’s look at the heart of the matter. What is usually made a down sleeping bag? Well, down… and feathery. But very rarely feathers. Let’s see what it is precisely.

Down sleeping bag

It is located under the belly and under the wings of the goose or duck. Flexible, very light and fluffy, it’s the most valuable part of the plumage.

The snowflake to a sleeping bag

It is located on the down sleeping bag it protects by keeping it dry. This small feather to ensure the homogeneity of the filling of down jackets while giving them the swelling.

The pen

It is located on the rest of the body of the goose and duck. Rigid and little elastic, it is rarely used to lining of jackets, because it would be embarrassing to the level of comfort. In addition, she isolates less well.

So what are the proportions?

A good upholstery must include a majority of down in its composition. The 90: 10 distribution corresponds for example to a filling consisting of 90% down and 10% of feathery. The high jackets of range can go up to 96% / 4%, which seems to be the maximum possible currently. A proportion of feathery which ensures the cohesion of the filling will be retained in most of the time.

All quilts are not equal

A goose from cold regions, such as the Hungary or Poland for example, has a more powerful than a French goose down, because the winters are colder and longer. The age of the animal also counts: in China, down very young ducks. The Chinese down is of poorer quality.

Yes, but my jacket or my sleeping bag always loses its feathers!

Now that we explained what was composed of a jacket, see exactly the amount of fluff and feathery there is in a good quality jacket. To do this, well, cut a jacket! Yes, Yes, you read!


When you see this video, and that one goes into account the impressive amount of down and feathery there is in a down jacket, this allows us to put into perspective.

Because although there are several small feathery can out of a jacket or a sleeping bag, this remains an extremely low (negligible) amount in terms of the composition of the filling.

Why a few feathery can escape?

It’s all in the title. Actually, this isn’t the down coming, but rather a snowflake. Take a picture of a snowflake:

You see where it’s going…
When your down jacket or your sleeping bag are tablets (due to sit, bend in half, of the store in a bag of compression, etc.), the air trapped in the compartments will produce a pressure to the surface. If a snowflake lies near the surface, in the position ‘ready to leave tip’, then a snowflake out of your jacket or your sleeping bag.