How Some People Stay Energetic With Just 4–5 Hours of Sleep: Here's What Expert Says
By Lokmat Times Desk | Updated: January 29, 2026 15:35 IST2026-01-29T15:34:59+5:302026-01-29T15:35:11+5:30
Generally, all doctors advise getting about 7 to 8 hours of sleep every night to maintain good health, stay ...

How Some People Stay Energetic With Just 4–5 Hours of Sleep: Here's What Expert Says
Generally, all doctors advise getting about 7 to 8 hours of sleep every night to maintain good health, stay fit, and feel refreshed. Not getting enough sleep can be detrimental to physical and mental health, increasing the risk of many diseases. However, you may have seen some people who remain active, fresh, and energetic throughout the day even after sleeping for only 4 to 5 hours. They don't feel sleepy or tired. Conversely, some people feel sluggish even after 8 hours of sleep. So the question arises: how do some people maintain energy despite getting less sleep? Do they have some superpower, or is there a scientific reason behind it? Let's understand.
The secret to staying fresh even after less sleep
Short Sleeper Gene: According to scientists, some people have a "short sleeper gene." Such people biologically recover completely even with less sleep. Their brain and body recharge themselves even with less sleep. But this ability is not present in everyone; it is something some people are born with.
Strong Body Clock: Our body has a biological clock, also called the body clock. People whose body clock is strong and balanced can function well even after less sleep. Their body releases hormones at the right time, which keeps them fresh and energetic in the morning.
Good Quality Sleep:It's not necessarily true that people who sleep less have poor quality sleep. Many people sleep less, but their sleep is deep and uninterrupted. This has a positive effect on the brain and body. Lifestyle and Habits
People who remain fresh and active even after less sleep always wake up on time, sit in the sun, exercise or walk, avoid junk food, and don't spend too much time looking at screens. These habits help them stay naturally active.
Is less sleep safe for everyone?
First, it's important to understand that having high energy levels even after less sleep is not normal for everyone. If a person feels good even with less sleep, it might be due to their individual body type. But in most people, lack of sleep leads to fatigue, irritability, hormonal imbalance, and a weakened immune system.
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