Kefiw

Archived noindex page. Kefiw's public focus is Property decision help.

Archived page

This older Kefiw page is kept for reference, marked noindex, and removed from the primary sitemap. The current Kefiw experience is focused on property decisions: cost, quotes, damage, buying, selling, owning, and packets.

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Burnout Monitor

Estimate when extra work hours stop being worth the fatigue cost.

Less sleep usually means weaker focus tomorrow. This tool compares the money from extra work tonight with the productivity you may lose after a short night.

Part of: Saving & Spending Calculators

Start below
Fields marked optional can be skipped; results update as you type
BURNOUT_MONITOR
Sleep vs Hustle — effective rate after cognitive decay
Sleep tonight (hrs)
Extra work tonight (hrs)
Hourly rate
$
COGNITIVE OUTPUT
85%
fog intensity tracks sleep loss
EFFECTIVE RATE
$25.50/hr
was $30.00/hr at full capacity
COGNITIVE FOG
0h4h6h8h10h
Gross tonight
$60.00
Tomorrow loss
−$9.00
Net value
$51.00
▸ METHODOLOGY
Cognitive output by sleep: ≥8h = 100%, 7h = 95%, 6h = 85%, 5h = 72%, 4h = 60%, 3h = 48%, <3h = 35%. Extra-work value = hours × rate. Tomorrow loss = hours × rate × (1 − multiplier). Net = gross − tomorrow loss.

How to use

  1. Enter sleep hours you'll actually get tonight.
  2. Enter hours of extra work you'd add by staying up.
  3. Enter your normal hourly rate.
  4. Read tonight's extra pay, tomorrow's estimated loss, and the net tradeoff.

Examples

5h sleep, 3 extra hours, $30/hr
Extra work pays $90 tonight. The tool estimates tomorrow's fatigue cost and shows what is left after that tradeoff.

Before you trust the result

Check the inputs that matter most: dates, rates, units, costs, and any optional fields you skipped. A calculator can only work with the numbers entered here, so use the result as a decision check rather than a final answer when money, health, tax, legal, or safety consequences are involved.

If the result feels surprising, change one input at a time and watch which number moves. That usually shows the real lever behind the decision.

Next up

Burning out? Set a rate that doesn't require the grind.Minimum Viable Rate → Gauge in the red? Sleep cycles are the first lever.REM-Sync · Sleep Cycles →

Frequently asked questions

› Are the multipliers scientifically exact?

They approximate the research on sleep-restriction cognitive penalty. Individual variation is large — treat as directional.

› What if I can't sleep 8 hours?

Fewer extra hours. The monitor shows the tradeoff; you pick the floor you can live with.

Tips & related reading

See the Saving & Spending Calculators hub →

Tips & how-tos

Relevant links

Related tools

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Revenue per Head

Estimate whether the next hire raises or lowers revenue per employee after management time and ramp-up.