CAFFEINE_SLEEP_HACK

The "Nappuccino" (Coffee Nap) is a bio-hack. The theory: Caffeine takes 20 minutes to hit your bloodstream. If you drink a coffee and immediately sleep for 20 minutes, you will wake up EXACTLY when the caffeine hits. You get the refreshment of sleep + the kick of caffeine simultaneously.

Is it the ultimate energy hack or a recipe for heart palpitations? I tested it for 3 days.

> ATTEMPT 1: THE ANXIETY NAP

I drank the coffee. I lay down. My brain: "You have 19 minutes left. Sleep faster." "You have 18 minutes. Why aren't you sleeping?" "Is that my heart beating or the caffeine?"
I didn't sleep. I just lay there with my eyes closed having a panic attack. When the alarm went off, I felt worse.

> ATTEMPT 2: THE CRASH

I was exhausted from a gym session. I drank the espresso. I passed out instantly. It worked perfectly.
The alarm rang. My eyes snapped open. Usually, waking up from a nap makes me groggy (Sleep Inertia). This time? I felt like I had been electrocuted (in a good way). My brain was clear. My body was energized.

> THE SCIENCE

Adenosine makes you tired. Sleep clears adenosine. Caffeine blocks adenosine receptors.
Normal Nap: Clears some adenosine. Coffee: Blocks receptors. Coffee Nap: Clears the adenosine so the caffeine has perfectly clean receptors to latch onto. It's a double-strike.

> CONCLUSION

It works. But the timing is critical. If you sleep too long (30+ mins), you enter deep sleep and wake up groggy. If you don't sleep at all, you just get jittery. But hitting that sweet 20-minute spot? It's the closest thing to legal performance-enhancing drugs I've found.