Yes, 3 hours of sleep is generally better than none because any sleep offers some restoration, improving mood and performance compared to zero rest, but it's still insufficient for long-term health, with adults needing 7+ hours; 3 hours lets you complete some sleep cycles, reducing grogginess, but chronic deprivation still harms your immune system and cognitive function.
Ideally? No. Only getting three hours of sleep in a day can leave you sleep-deprived, which has been linked to various negative outcomes8 for emotional, cognitive, and physical health. These can include a weakened immune system, an increased risk of obesity, memory decline, and more.
So no, having your eyes closed in bed does not count as sleep, but it's not like it's not beneficial either. Quiet wakefulness is an intermediary step for all of us to get to sleep on a healthy schedule, unless we are accustomed to being so exhausted we fall asleep within seconds of laying down.
Interrupted sleep is harmful and often produces deficits comparable to partial sleep loss; it is not universally as bad as an entire night without sleep, but chronic or severe fragmentation can produce similar cognitive, emotional and health consequences over time.
Not sleep one night has no effects beyond the immediate impacts on brain function and biochemicals such as hormones, which normalize after sleeping again.
The koala is famous for sleeping around 20-22 hours a day, which is about 90% of the day, due to their low-energy diet of eucalyptus leaves that requires extensive digestion. Other extremely sleepy animals include the sloth (up to 20 hours) and the brown bat (around 20 hours), with some snakes like the ball python also sleeping up to 23 hours daily.
Having short sleep durations, particularly less than 7 hours per night is associated with increased risk of cardiovascular disease morbidity and mortality.
The 3-2-1 sleep rule is a simple wind-down routine: stop eating and drinking alcohol 3 hours before bed, stop working/mentally stimulating activities 2 hours before, and turn off screens (phones, TVs) 1 hour before sleep, helping you transition to rest by reducing stimulants and preparing your mind and body. It's often part of a larger 10-3-2-1-0 rule, which also adds no caffeine 10 hours prior and no hitting snooze (0) in the morning.
If lying down without sleeping feels beneficial, then there isn't necessarily harm. That's unless wanting but being unable to sleep is making you frustrated and even more awake. Sleep experts suggest creating a strong association between bedroom and sleep, not bedroom and wakefulness.
While every organ in the body is affected by poor sleep, the brain takes the biggest hit, showing signs of dysfunction faster than any other system. Over time, the heart, liver, and immune system also begin to show stress, which can increase your risk of chronic illness.
[15] A complete sleep cycle takes roughly 90 to 110 minutes. The first REM period is short, and as the night progresses, longer periods of REM and decreased time in deep sleep (NREM) occur.
You “lie in bed.” “Lie” is a verb that means “to be or put oneself in a reclined position” (e.g., “I will lie in bed because I'm tired”). “Lay” is a verb that means “putting something or someone else in a horizontal position” (e.g., “I need to lay my baby down in her crib”).
Signs of poor core sleep (deep, restorative sleep) include waking up foggy, daytime fatigue/energy crashes, poor concentration, irritability, frequent illness, memory issues, and mood swings, indicating your brain and body aren't fully repairing and consolidating memories. You might also experience increased sugar cravings, slow muscle recovery, and a weakened immune system.
Musk goes to bed around 3 a.m. and gets about 6 hours of sleep every night. Although he's not getting eight hours a night, Musk has upped his sleeping schedule from being nearly nonexistent in the past. In May 2023, Musk told CNBC that he's no longer pulling all-nighters.
When you don't get adequate sleep, your cortisol production gets out of whack. It remains elevated instead of naturally decreasing, sometimes providing the illusion that you feel better with less sleep.
closing your eyes to the value of sleep
Resting with your eyes closed can calm your mind and help your muscles to relax. Your blood pressure drops and your heart rate slows. Resting can also: reduce stress.
Sleep problems appear to differ depending on the ADHD sub-type. If you have inattentive ADHD, you are more likely to go to bed at a later time, whilst those with predominantly hyperactive and/or impulsive symptoms are more likely to experience insomnia.
The healthiest sleeping position often depends on individual needs, but side sleeping (especially the left side) is generally favored for reducing back/neck pain, aiding digestion (acid reflux), improving circulation, and helping with sleep apnea by keeping airways open, while back sleeping is great for spinal alignment but can worsen snoring and reflux. Stomach sleeping is usually discouraged due to neck and back strain.
On average, Japanese sleep about 7 hours and 20 minutes a night, - the least among 33 OECD member countries. And the number of insomniacs is growing. But even as more people suffer from insomnia, help can be hard to find.
To 100% fall asleep, focus on consistent sleep hygiene (same schedule, dark/cool room, no screens/caffeine/alcohol before bed), practice relaxation like the 4-7-8 breathing technique or progressive muscle relaxation, and if awake for 15+ mins, get up and do something calm until sleepy, rather than forcing it, to build a strong bed-sleep association.
In his piece, he revealed that through his years of research, he's found that rumination is the biggest thing that causes poor sleep. He says that being worried about something at night has affected his own ability to fall asleep.
A study of the sleep habits of more than one million people over six years seems to debunk the popular idea that eight hours of sleep nightly are required for optimal health. Those who had six or seven hours had a lower death rate than those who regularly slept eight or more hours—or less than four.
Best Foods for Sleep
What are signs of sleep deprivation?