If you suffer from poor sleep, it might have something to do with the way your bedroom furniture is arranged, especially if you have a mirror opposite your bed.
According to Feng Shui experts, having a mirror facing your bed can promote nightmares. An explanation given for this is because it's believed that when we sleep, our soul leaves our body. When the soul sees its reflection it gets spooked, which can cause nightmares.
Others say when the soul leaves the body, it may confuse the reflection of the body for the real body, this is known as soul-stealing.