To dream that you are sleeping denotes peace of mind. Alternatively, it means that you are ignorant of the conditions and circumstances around you. If you dream of sleeping together with someone (in a non-sexual manner), then it suggests that you are avoiding some issue or situation that is being symbolised by the person. If you do not know this person, then it indicates that you are refusing to recognize a negative or hidden aspect of yourself. Sleeping may also be synonymous with death in that it beckons renewal and new beginnings.
To see someone sleeping in your dream is a reflection of yourself and your own subconscious mind. It is telling you that you may not be alert or informed about a particular situation. More specifically, to see your parent(s) sleeping implies that you are turning a blind eye to certain things that would normally bother you. To see your boyfriend sleeping in your dream indicates that you are refusing to see a problem in the relationship. You are afraid to confront or bring up the issue.