“I only got 7 hours last night. I’m going to die early.”
The anxiety in my patient’s voice is palpable. We have been brainwashed by a single number: 8.
We are told that if we don’t get 8 hours, we will get Alzheimer’s, get fat, and crash our cars.
Here is the prescription I give these patients: Stop counting.
The “Goldilocks” Genetics
There is no “Magic Number” for the human species. Sleep duration is largely genetic, like shoe size.
* The Bell Curve: Most people need between 7-9 hours. But the “Normal” range is anywhere from 4 hours to 11 hours. * The Thatcher Gene: Some people (Short Sleepers) have a genetic mutation allowing them to thrive on 4-6 hours. Margaret Thatcher was famous for this. * The Long Sleepers: Others naturally need 10 hours to function.
As the old proverb cited in How To Sleep Well says: “Six hours for a man, seven for a woman, and eight for a fool.” While not scientifically accurate, it highlights that “8” has never been a hard rule.
The Danger of “Procrustean” Sleep
In Greek mythology, Procrustes stretched or cut people’s legs to fit his bed. We do this with sleep. * The Scenario: You naturally need 7 hours. You go to bed at 10 PM and wake up at 5 AM feeling great. The Mistake: You read a magazine saying you need* 8 hours. So you force yourself to stay in bed until 6 AM. * The Result: You spend that last hour tossing, turning, and worrying. You develop Psychophysiological Insomnia (worrying about sleep prevents sleep).
Quality > Quantity
The book makes a shocking point: “Sleeping >8 hours can actually increase your risk of dying.” Now, this is correlation, not causation (sick people sleep more). But it proves that more is not always better.
We need to shift the metric from Time to Quality. 6 hours of deep, unbroken sleep is infinitely better than 8 hours of fragmented, light sleep.
How to Find Your Number
Don’t use an app. Use your body.
1. The Vacation Test: On your next holiday (after the first few days of catch-up sleep), see when you wake up naturally without an alarm. That is your biological number. 2. The 15-Minute Rule: If you wake up and can’t fall back asleep in 15 minutes, get up. Do not lie there trying to “hit the number.” You are just training your brain to associate the bed with frustration. 3. Optimize the Environment: Since you can’t always control duration (kids, work), control the depth. Use Slumbelry Ergonomic Support to ensure the hours you do* get are pain-free and physically restorative. * Use Slumbelry Light Management to ensure your melatonin onset is rapid, maximizing the efficiency of your sleep window.
The Slumbelry Commitment
Sleep is the most vulnerable state of human existence. It is where we heal, reset, and grow.
At Slumbelry, we don’t just sell sleep products; we advocate for your physiological right to rest. From ergonomic support to light management, every solution we offer is designed with one obsession: Respecting your Biology.
Science is our language, but your recovery is our purpose. You take care of everything else in your life—let us take care of your nights.
Rest Deeply,
The Slumbelry Team
