What Leaders and Managers Can Learn from Why We Sleep
Treating sleep as the first thing to cut when the workload is heavy is the specific trap Why We Sleep names; a manager who cuts sleep to get more done usually gets measurably worse judgment out of the extra hours, without feeling any less confident in it.
The whole book, compressed
This edition works through 3 core lessons — take them one at a time, not all at once.
What's different for your conditions
Tap whichever ones sound like you. Nothing here is sent or saved — it's just for your own noticing.
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The core lessons, applied to you
Protect a consistent sleep and wake schedule
Going to bed and waking at consistent times, even during a demanding stretch, supports steadier thinking than an irregular schedule with occasional long nights.
A manager sleeps in on weekends to recover from a week of late nights, which feels restorative but actually makes the following week's schedule harder to stabilize.
Pick one anchor time, either your wake time or your bedtime, and hold it steady for the next week even on lighter days.
Recognize how sleep loss quietly degrades thinking, mood, and decisions, even when you feel fine
Sleep-deprived judgment often doesn't feel impaired from the inside, which is exactly why a tired manager can make a genuinely poor call, like a harsh piece of feedback, while feeling completely confident about it.
A manager delivers difficult feedback at the end of a short-sleep week, feels certain about the tone in the moment, and only recognizes it was harsher than intended once well-rested again.
Before a significant conversation after a run of short nights, delay it by a day if you can, and notice whether your approach changes once you're rested.
Build a wind-down routine that actually supports falling and staying asleep
A calmer, more consistent routine before bed, with less late-night email and screen stimulation, makes it easier to actually fall and stay asleep even on a busy schedule.
Meeting deadlines and protecting your sleep aren't opposites — the hours saved by cutting sleep are usually paid back, with interest, in worse decisions and harder conversations the next day.
Name one thing, honestly
Is there a recent decision or conversation you handled during a short-sleep stretch that you'd handle differently now?
Good. Now look back at the "Try this" line under whichever lesson feels most connected to what you just wrote, and treat that as this week's actual assignment — not all 3 at once.
The practices from this edition
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Run this for seven days
Before a significant conversation after a run of short nights, delay it by a day if you can, and notice whether your approach changes once you're rested.