The 4:47am Problem
When the business is asleep but your brain isn’t
Most founders I know sleep like crap.
Late nights
Wake up at 4:47am
Scroll
Try to fall back asleep
Can’t
Repeat
Adrenaline covers it when you’re 28.
At 42 it doesn’t.
It just makes you tired and wired.
After years of that pattern, it feels permanent. It’s not.
A new JAMA randomized trial:
- 3 hard 20-minute workouts per week
- Tightened sleep habits
Cut time lying awake by 30 minutes.
112 sedentary women
8 weeks
Group 1: high-intensity bodyweight circuits, 3x/week
-> Sleep efficiency 88% to 90%
Group 2: structured weekly sleep coaching
-> About 90%
Group 3: both
-> 88% to 93%
Wake-after-sleep-onset down 30 minutes
Hard intervals increase sleep pressure.
Better habits reduce fragmentation and hyperarousal.
You need both.
But more high-intensity is not better.
Go hard every day and stress climbs. Recovery drops. Sleep worsens.
You also need lower-intensity cardio for:
- Mitochondria
- Fat oxidation
- Aerobic base
- Parasympathetic tone
So:
A few hard sessions
Plenty of low-zone cardio
Better sleep habits
It sounds obvious.
It’s easy to ignore in grind mode.
You pay for it later.
