The Cost of Sleep Debt
Sleep debt is real — and cumulative
Sleeping 6 hours/night for 2 weeks impairs you as much as going 24 hours without sleep. The scary part? You stop noticing the impairment.
The hidden costs
Sleep debt increases cortisol, insulin resistance, inflammation, and hunger hormones. Just 4 nights of 4.5 hours reduces insulin sensitivity by 30%.
True or False
You can fully recover from sleep debt by sleeping extra on weekends.
This step is interactive — open the Thier app to try it.
Estimate the impact
How much does one hour less of sleep per night increase accident risk?
This step is interactive — open the Thier app to try it.
Match the sleep debt effect
Match each consequence of poor sleep to the system it damages.
This step is interactive — open the Thier app to try it.
What 1 week looks like
See how your body changes on a 6-hour sleep schedule.
This step is interactive — open the Thier app to try it.
Key Takeaway
You can't reliably catch up on sleep debt. Consistent 7-9 hours nightly is far more valuable than weekend recovery.