Of all the sleep stages, REM sleep is often the one to get the most attention.

What is REM sleep?

It’s also one (but not the only) sleep stage in which wedream.

Emma Loewe

Since REM mimics wakefulness in certain ways, some scientists prefer to call it “active sleep.”

“I don’t think you might separate REM sleep and sleep in general,” he tells mindbodygreen.

But again, it depends on the person and theirunique sleep needs.

Ashley Jordan Ferira, Ph.D., RDN

Take the quiz

Can you get too much REM sleep?

We all know that getting too little sleep is not healthy, but what about too much?

Signs of oversleeping includeheadache upon waking8,trouble falling asleep when you gotta, andmental fogginess.

That is, focus on making sure that your routine is supportive of deep and restorative rest.

Which supplements are right for you?