A new study says dreaming of a cheating hubby isn't cause to worry.

Have you ever dreamed that your guy was unfaithful -- and woke up fuming?

You may feel guilty for blaming your nocturnal suspicions on him, but a new study says cheating dreams are more normal than you think.

In fact, more than 75% of women dream their partner is cheating and wake up angry, according to an online survey of 5,000 people conducted by The Dream Zone.

"There are lots of people who get slapped in the face first thing in the morning because of this dream!" says lead study author Lauri Quinn Loewenberg.

But why would you dream that your sweet guy is a philandering jerk?

"The reason is very simple,' says Loewenberg. 'The cheating dream happens when we are feeling cheated out of our time with our mate. The dreams are no fun because the feelings we experience in the dream are very real. These dreams hurt! But they are good for us because they are waking us up to the fact that something has been on the receiving end of our mate's time and attention rather than us."

And get this: The "other woman" is rarely Heidi Klum or your hubby's hot secretary.

"In my thirteen years of research, I've found that when a woman gets the cheating dream, 'the mistress' is usually hubby's work, it's less often about football or golf. No one seems to work just 9 - 5 anymore.  When a man gets this dream, the culprit is usually his own kids! Once children come along, hubby is no longer babied. The kids get all the attention he used to get. And when it comes time for 'sexy times', she's bushed!"

According to Loewenberg, women have cheating dreams to call attention to a lackluster love life. And the dreams are a wake-up call that it's time to re-ignite the flame that time, work and children have dimmed.

"The fact that these dreams are so common should be a warning to all of us that we need to be careful that we don't let life get in the way of the most important relationship of all."

But could the 'cheating dream' actually be a warning sign that your man is unfaithful?

"There is always that possibility,' says Loewenberg. 'But before you start snooping through drawers and checking the call log on the cell phone, be sure there are other signs pointing to a possible infidelity than just a dream!"