When you get a bargain of silk, you must be careful. Maybe you are cheated by the sellers, since in the world of silk bedding you truly do get what you pay for.
There are typically only a few occasions where high quality silk sheets will be reduced in price to the point of a being a real bargain. If a color or style is being discontinued manufacturers will discount the sheets. There may also be periodic sales or special pricing if silk sheets, a silk comforter, and a silk duvet cover are all purchased at the same time. In other cases, cheap silk sheets might be made from a lower quality silk and likely also contain other non silk fibers in the weave.
If you can’t afford high quality silk sheets now, just save your money until you can do it. Silk is really worth the price.