Can someone look awake during a microsleep?

• A. No, microsleep always involves closed eyes
• B. Yes, eyes may be open but the brain is not processing information
• C. Yes, but only during deep sleep stages
• D. No, microsleep lasts several minutes

Answer: (B)

During microsleep, the brain briefly slips into a sleep-like state even while you appear to be awake. Eyes can be open during this lapse, but processing of external information is not happening effectively for that moment. You may be looking straight ahead and seem focused, yet your perception and reaction are impaired for a few seconds. This is why the idea that eyes may be open but the brain isn’t processing information is the most accurate description of microsleep.

The other statements don’t fit because microsleep does not require closed eyes, it is not a matter of being in deep sleep stages, and it lasts only a few seconds to a handful of seconds—not several minutes.