How long is the perfect nap?

Do you want the short or the long answer?

Sleep researcher Dr. Jeffrey Iliff says you can either take a short one…say 20 or 30 minutes…you won’t fall into a deep sleep and you’ll wake up feeling refreshed.

Now if you want to go longer, knock out for 90 minutes.

That completes one full sleep cycle and again, you’ll wake up feeling recharged.

Here’s his video: