Yes, broken sleep is often worse for mood and cognitive function than getting the same amount of sleep in one consolidated block, as interruptions prevent deep, restorative stages like slow-wave sleep, leading to greater negative impacts on well-being, even if total sleep time is similar to a shortened night. While any sleep is better than none, disrupted sleep is more detrimental to positive mood and mental health than abbreviated sleep, highlighting quality over quantity.
In conclusion, while three hours of sleep is not ideal, it is generally better to choose sleep over staying awake. Even a short period of sleep can provide some benefits for your mental function and overall well-being.
If you need to stay alert and productive throughout the day, then a 2-3 hour sleep is likely going to be the best option. If you only have a few hours left in the night to accomplish a task and don't have time for a nap during the day, then an all nighter might be a more practical option.
But for the most part, studies suggest biphasic sleep patterns are relatively harmless. So long as you're still getting approximately seven to nine hours of sleep a night, most research suggests it's fine if that sleep happens in two sessions.
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.
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.
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.
Yes, the Navy SEAL sleep trick (an 8-minute power nap with elevated legs) is a real technique for quick rest, popularized by former SEAL Jocko Willink, that helps improve alertness and reduce fatigue, though its effectiveness depends on individual relaxation skills and it's not a substitute for full nighttime sleep. The method involves lying down, elevating your feet above your heart (on a chair or couch), relaxing facial muscles, dropping shoulders, and clearing your mind for about 8-10 minutes to promote relaxation and blood flow, preventing grogginess.
While a good night's sleep is important for overall health, an occasional night of lost night does not do any harm. However, when all-nighters become a common occurrence, then sleep health can be compromised.
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.
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.
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.
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.
In addition to daytime sleepiness, missing or interrupted sleep can cause: irritability, decreased creativity, increased stress, decreased accuracy, tremors, aches, and memory lapses or loss.
A brief nap can be refreshing and restorative, especially if you are sleep deprived, but longer naps late in the day can negatively impact your sleep quality and duration. A primary key to taking a successful nap comes down to timing. For most people, the ideal nap lasts 30 minutes.
Own Your 3-Foot Space In Navy SEAL training, there's a simple but profound principle: Own your 3-foot space. It means focusing on what's directly within your control—your actions, your attitude, your effort—no matter how chaotic the environment around you becomes.
A prime example is the box breathing technique, famously used by the Navy Seals, known as the 4-4-4-4 method. This simple yet effective method involves a cycle of inhaling for 4 seconds, holding the breath for 4 seconds, exhaling for 4 seconds, and then pausing for 4 seconds before the next inhalation.
Napping with your legs elevated is a key part of the Navy SEAL nap, and it has several benefits for your overall health. Improved circulation: Keeping your legs elevated promotes better circulation, helping blood return to the heart more efficiently.
10 hours before bed: No more caffeine. 3 hours before bed: No more food or alcohol. 2 hours before bed: No more work. 1 hour before bed: No more screen time (shut off all phones, TVs and computers).
We all benefit from taking time out from the stress and anxiety in our lives. Rest is no substitute for a poor night's sleep. Don't settle for staying awake at night — be proactive about your sleep. Try to get good sleep each and every night.
The ideal nap length is either a short power nap (20-minute nap) or up to 90 minutes. A two-hour nap may leave you feeling groggy and hamper your normal sleep cycle. Generally, you want to nap for less than an hour and take it earlier in the day (such as before 2 or 3 p.m.).
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.
The 80/20 Rule means that you stick to your healthy, consistent sleep schedule 80% of the time. You then can make exceptions to your schedule 20% of the time. The 80/20 Rule allows you to “live life” and enjoy those special moments with your family.
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.