Dreamdultery 

Performing a sex act in a dream with someone who is not your waking partner. This is usually quite enjoyable at the time, but not necessarily.

Upon waking, you are wracked with guilt at your indiscretion. Often results in a dreamover. Synonymous with dream cheating.

I have been in a funk all day, probably due to the dreamdultery I committed last night.

Dreamdultery by Body Copy August 11, 2010