Nap Safety Level 4: The Unconscious Expert

Warning: Proceed with Caution

At this level, you're not just a napping expert, you're a ninja. You can fall asleep anywhere, anytime, and wake up with the skills of a seasoned professional.

But don't get too cocky. There's still danger lurking in every corner. Here are a few tips to keep you safe:

• Always nap on a surface that's at least 2 inches thick. Anything less, and you risk bottoming out.
• Never, ever, under any circumstances, fall asleep while operating heavy machinery or a lawnmower.
• Keep your phone on silent mode while napping. Trust us on this one.

Nap Safety Level 5: The Unstoppable Force - Because you're not done yet.

Back up to Nap Safety Level 3: The Sleepy Skeptic if you want to relive the basics.