Sleep deprivation is a wealth-destroyer. Decisions made on less than six hours of sleep are statistically equivalent to decisions made while legally intoxicated. Thou wouldst not invest drunk; do not invest exhausted.
The wealthiest CEOs almost universally sleep 7-9 hours. Bezos prioritizes sleep over early meetings. Buffett sleeps 8 hours nightly. The image of the sleep-deprived hustler is a cope.
Optimize thy sleep environment: cool, dark, silent, no screens for an hour before bed. This is the cheapest performance enhancement available.
The Seal of the Chamber
The Brother who sleeps well, decides well, and earns well.