There are so many varieties of silk duvet available today, it's not always easy to decide which one to buy.


First - the basics.


  • Silk quality

  • Knowing what is in your silk duvet is essential if you want a duvet that will perform as it should. From the outset let's be clear. Long-fibre mulberry silk is what you should be looking for in your duvet. Most other forms of silk will just not be as good as long-fibre mulberry silk. Long-fibre mulberry silk does however come with a caveat. It's expensive, but then you get what you pay for. Cheaper silk duvets are almost always filled with a mix of polyester and silk, or chopped strand silk which is essentially off cuts of silk that can't be used for anything else. Any good silk duvet will have a small inspection zip where one can inspect the quality of silk inside the duvet. If your duvet doesn't have an inspection zip you need to be asking the question... "What's inside my duvet?"

  • Tog Ratings

  • As of yet there is no official British Standards tog rating for silk duvets. This leaves the market in a bit of turmoil as some suppliers may recommend one thing, and others something completely different. The comparative tog rating system we have seen is by measuring grams of silk per square meter. A duvet filled with 250gsm silk will be the equivalent of a 2-4 tog. A duvet filled with 400gsm will be the equivalent of a 7-9 tog, and a duvet filled with 600gsm will be the equivalent tog a 10-13 tog. It is worth pointing out that many suppliers offer a "combination duvet" which is a 250 and 400gsm duvet that fasten together. There are some good deals to be had when a discount is offered for the purchase of a combination set. For a good deal on combination duvets take a look at a company called Silksleep. www.silksleep.com

  • Duvet casing

  • There is almost an endless choice for duvet casings. Cotton, silk, polyester etc.. Traditionally the Chinese used a very course threaded casing for their silk duvets. This was to allow body heat to escape through the casing and help in heat regulation. Today, largely due to modern manufacturing techniques a much tighter and finer casing can be woven which has similar properties. The choice of silk casing is largely down to individual preference, however there are a few points to consider.

  • Cotton casings.
  • Cotton casings are by far the most popular form of casing for a modern day silk duvet. Cotton casings are available in various grades but it is important to consider thread count when making a purchase. Generally the higher the thread count, the finer the stitch and the better wearing the duvet will be. Anything over 240 thread count should be fine. Anything under and one should question the quality and continued durability. Quality of casing is often directly related to price.

  • Silk casings.
  • In an ideal world every silk duvet would have a silk casing. This however would price silk duvets out of the market. A quality silk casing on a silk duvet would in reality make silk duvets prohibitively expensive. There are silk duvets available that do have silk casings and compare favourably in price with cotton covered duvets. This at face value looks almost too good to be true, and sadly it usually is. Before you purchase a silk duvet with a silk casing you should ask what the momme of the silk casing is. Momme is the unit used to grade the quality of silk. Please see our silk momme page for a detailed explanation of this. A silk casing should have at leaset a momme rating of 19. Anything lower and you could encounter durability issues and herein lies the issue. What would initially seem a great price for a silk cased duvet could soon turn into something worthless with a hole in it. We are not saying don't buy silk cased silk duvets, but just be sure you know what you are getting before you make a purchase.

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