Originally used and made in China, since the late 20th century, silk comforters have become more common in Western market areas.
Each cocoon is stretched by hand on a U-shaped wooden rack, and the ball of thread becomes a sheet of tangled fibers.
This sheet is then hand-stretched again on a larger rack, along with several other cocoons to make a thick, cottony bundle called silk floss.
It can take anywhere between 100 and 400 of these thin layers to make a comforter, depending on bed dimensions and desired thickness.
Silk comforters provide excellent insulating properties similar to down, but tend to be less bulky than down duvets.
[2] Silk comforters are easy to care for: they only need to be dried under the sun twice a year to maintain their freshness.