Yes, silk is just hard to care for in general.
The Silk Road makes very high quality silk duvet covers. You can find them for purchase online for very cheap, too.
No, It is not recommended to put a silk duvet in the dryer which will most likely burn the fabric. They are usually from what I've found to be dry-clean only.
Silk duvets are best when dry cleaned, as water will damage them.
Duvet covers are recommended for all silk comforters because they'll protect the silk from snagging and spills.
There is the Nautica Fiji Duvets that is very nice and made of silk
Yes, duvet covers are very easy to clean and take care of. The duvet covers are also safe since they are finished without harsh chemical softeners or chlorine.
Putting aside the high cost of designer or licensed bedding, specialist fabrics like natural silk or velvet would be the highest cost fabrics that a duvet cover could be made from.
No. Silk is extremely fragile as a fabric.
Both silk duvets and cotton duvets can be really nice, especially when they have high thread counts. The main thing you want to be thinking about when deciding between these two choices, is the fact that a cotton one can be easily thrown in your waster and dryer when it gets dirty. A silk one will have to be dry cleaned, which form many people would defeat the whole point of having a duvet cover in the first place!
Almost any store that sells beds, linens, blinds and sheets are also selling silk duvets. Some locations include Linen Chest, Tmasc, SilkyBay, AliExpress, Beddingtons and The Mullberry Silk Co.
He didn't discover silk, but wanted to trade for silk. They knew about it in Europe, but it was expensive and hard to get. The Silk Road was a hard dangerous trip for people.
The disadvantages of using a double duvet cover on a single sized duvet is that it is far to big for a single duvet. It will be very difficult to sleep in as the duvet may move around which, will make it hard to sleep well. This makes it very uncomfortable and the person might end up being potentially cold as the duvet might not be on them. In the end it will just end up being a stressful nights sleep as you toss and turn to get into a comfortable and warm position. You could wrap it round yourself but, then you might become a cocoon and have restricted movement. A bit like being in a sleeping bag hard to turn left or right.