When you take a nap, 15, 20, 10, 7 minutes, whatever it might be, you feel energized, but you don't necessarily feel optimized.

You don't feel sharp necessarily.

You don't feel like, okay, I can keep going.

Yeah.

Right?

I can make it to the nighttime.

I can make it.

So what CIA taught us is that if you are going to rest, choose whether you are resting for physical reasons or for mental reasons.

If you're resting specifically to benefit the brain, you need to give yourself at least enough time for a full REM cycle. Smoke alarm last night.

Oh my gosh.

Why do fire alarms tell you that they're running out of battery only at night?

Only at night.

They never, I don't think I've ever had one go off during the day. I know I never have. Yeah, because the beeping, it intrudes in my dreams. And then after I, I'm like, what is that sound? Because it's not, it's like, it's spaced. So it takes you a few minutes to be like, what is that?

And then you have to think to yourself, yeah, can I sleep through this?

And I cannot.

So I can.

And that is exactly what happened last night because I also was roused from sleep by the beep of the fire alarm running out of batteries.

And I thought to myself, I can sleep through that.

And you sounded like you were dead.

It was.

Sounded like you were dead.

Until that fire.

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