Dreaming that you are lying in bed means that something is going to happen. If you act rashly, terrible things will happen. If you dream that the bed is not clean, it means that you should keep your duty and stand out from the crowd, and the result will be very bad.
If there is dust on the bed, something pleasant will happen, perhaps a visit from a friend or relative.
It's lucky to clean the bed by yourself.
Therefore, the point is to be cautious.