What are the benefits of Silk?

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There is a reason that the Ancient Chinese culture considered silk a fabric for Emperors.

Not only is it ultimate luxury, but it also has many superiors and beneficial properties than that of other natural fibres and synthetic materials.

Our silk has been carefully sourced and produced into high quality products to ensure our customers get the most luxurious comfort every day.

Benefits of Silk

100% natural

Silkworms are farmed in strictly controlled and abundant environments. They are fed a diet of natural mulberry leaves to ensure they are healthy. This assists them in spinning the highest quality cocoons. These methods result in 100% natural fibre silk thread and contain a whole host of benefits.

Skin sensitivity

Silk threads have amino acids in them, which have the same PH as our skin.

This results in silk being naturally hyper-allogenic. It is beneficial for people suffering from skin irritations and sensitivity such as psoriasis, eczema and other allergic aliments. In fact, silk conditions the skin and hair due to these amino acids.


Silk contain sericin (the gum that hold the cocoon together) this natural protein which have properties that include; antibacterial, antifungal and resistant to dust mites. This alleviates skin irritations.

Skin Anti-ageing

Silk is a special fabric in that it helps you face retain moisture in your skin.  Silk is not as absorbent like many other fabrics. Very absorbent fabrics can draw moisture from your face which results in creases and fine lines when you wake up.

The natural properties in silk which make it very smooth helps to reduce friction on the skin which minimizes sleep wrinkles.

Reduces hair breakage

Much like the skin, silk is gentle on the hair and ensures your hair retains moisture, reducing hair breakage, hair creases and frizz. Silk also protects your eyelashes.

The natural properties in silk which make it very smooth helps to reduce friction which is often the reason for hair damage, split ends, and tangles

Regulates body temperature / Enhances sleep

Silk is a breathable material unlike other fabrics. It allows for air flow. silk threads either capture or releases the warmth between the silk threads.

In the summer it sheds excess heat and, in the winter, it retains heat, thus regulating the temperature in a way that is all natural.

Highest comfort / enhances sleep

Silk has properties that enhances the body’s natural rest and sleep cycles. Silk has the “hugging effect” meaning it moulds to your body shape throughout the night. This prevents the sheets from sliding off your body which could interrupt the sleep cycle. It also is much lighter and flexible therefore not putting pressure on our bodies.

Mulberry silk now accounts for more than 95% of the silk produced globally.

What is inside your duvet?


Silk duvet inners are made using pure 100% silk batting in different togs to create the ideal weight and warmth for the season or climate.

Silk batting is identifiable by the sheen on the silk.

In South Africa in particular, we use 3.2 tog for summer duvets and 6.4 tog for winter duvets.

Custom tog silk duvets can be ordered and manufactured by special request. The lowest tog is 2 tog which is required for full coverage.


Polysester is the material used to create hollow fibre duvet filling. It essenially tries to immitate silk but apart from looking similar to silk in some respects, it does not have the same temperature regulation capabilities or the longevity.

Hollow fibre is much cheaper than silk or any of the feather fillings. 

Hollow fibre is light, is springy to the touch and retains it’s puffiness fairly well. It is not possible to reinvigorate hollow fibre like Silk duvet inners. 


Feather filling, including various grades of duck down are the most common and popular fillings found as duvet fillings around the world.

Goose and duck down have very good thermal properties, helping to regulate temperature and as with Silk, the tog of the duvet determines what climate it is ideal for.

The tog of top quality duck/goose down duvet inners require less feather material to achieve the same tog rating. 

What is a tog rating

The tog rating is a measure of the warmth of a duvet. It indicates the ability of the duvet to trap and retain heat and and when combined with the ability of the filling materials heat regulation properties, means, the higher the tog rating, the warmer the duvet.

The tog rating system provides a standardized way to communicate the thermal insulation of a duvet. Here’s a general guide to tog ratings and their corresponding warmth levels:

2.0 to 6.4 Tog

These are lightweight duvets suitable for warmer weather or for people who prefer a cooler sleep environment. Our Silk Duvets are made in 2 different togs, 3.2 tog for summer and 6.4 tog for spring/winter.

At SILK.co.za we manufacture to order and are able to customize any duvet to the tog rating you require.

Silk Duvet Inner 3.2 Tog

Silk Duvet Inner 6.4 Tog

6.4 to 10.5 Tog

These are medium-weight duvets, suitable for cooler nights or for use in bedrooms with average temperatures.

12 to 13.5 Tog

These are heavyweight duvets designed for colder seasons or for individuals who tend to get cold during the night.

Over 13.5 Tog

These are extremely warm duvets, ideal for very cold climates or for individuals who are particularly sensitive to cold.

It’s important to note that personal preferences and individual factors, such as room temperature and personal body warmth, also play a role in choosing the right tog rating. Some people may find a lower tog rating sufficient even in colder weather if they tend to sleep warmly, while others may need a higher tog rating for extra insulation.

It’s a good idea to consider the tog rating in conjunction with the material and construction of the duvet to ensure the desired level of comfort. Additionally, some duvets come with options for different tog ratings on each side, allowing users to adapt to changing seasons or personal preferences.

In the case of silk tog ratings, it is possible to tie tie two of the summer duvets (3.2 tog rating) together to create a Spring Dub=vet. (6.4 tog rating)