Whether it's a down jacket or a down sleeping bag, “down leakage” has always been a problem for everyone.
If your sleeping bag does not leak down, then congratulations on buying a very good down sleeping bag;
If the down leakage, then congratulations on winning the lottery! But down leakage also has serious and not serious problems.
In this regard, the spell is the material, workmanship and quality.
So, how can you tell which aspect of your sleeping bag is problematic based on down leakage?
Ideal fleece
Even an inexpensive goose down down sleeping bag that is used regularly and rubbed will drill down; so having a small amount of drilled down is not considered a problem.
But if the amount of drilling is larger, it rises to the level of a down leakage problem, which can be attributed to no more than three reasons:
The fabric is not so good, poor workmanship;
Sleeping is not honest, rolling back and forth friction, the use of the process caused by shedding, tearing;
The down itself is not mature enough;
If your down sleeping bag leaks down to the point where you can hardly stand it, it's often a combination of the above! For example, a below-market price of down sleeping bag accidentally washed with a wave washing machine, the severity of the consequences of down leakage you should imagine!
So, the down sleeping bag really can not just wash.