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Silk is a natural fibre recognised for thousands of years for its quality as a raw material and the high added value of its derivative products. It is obtained from several types of insects: the Bombix mori or “silkworm”, which feeds on natural mulberry leaves, is the most common for the finest textile production.

The combination of the characteristics of its two proteins (±25% sericin and ±75% fibroin), make silk a material with unique textile properties that provide those who use it with benefits that cannot be found in other natural fibres.

The benefits of silk as a natural fibre vs. synthetic fibres

Did you know that?…

To extract 1 kg of silk, approximately 3,700 cocoons are needed.





The eggs hibernate for more than 300 days while they finish creating the cocoons to extract the silk thread

Growth: They alternate up to four phases of sleep and skin shedding, doubling their volume and weight every two days until they reach 8 cm. Each larva eats 0.1 kg of mulberry leaves in this phase.

1. From a single cocoon a silk thread between 900 and 1500 meters long can be made. The longer the thread, the thinner it will be and the higher its quality.

2. A mid-thickness Silkdreams summer duvet is made up of about 15 layers of silk (1 kg of weight = 3700 cocoons)

A traditional artisan process with a lot of history


About ten days after the worms have finished making the silk cocoons, those of the best quality are selected from the nests where they are raised.




The cocoons are then boiled to prevent the butterfly from hatching.

Extraction and cleaning

The larva is extracted from each cocoon and the cocoon is carefully washed, undoing the thread woven by the worm. The thread of a single cocoon can be up to 1500 meters long.




Once empty and clean, the silk cocoons are stretched over wooden moulds, drained one-by-one and dried in the air.

Stretching and filling

Finally, four people stand at the sides of a table; a skein of silk formed by several cocoons is placed in the centre of the table and each person successively pulls the skein to his or her side, thus forming a layer of the duvet filling. A duvet of medium thickness can have up to 300 layers of silk!