
Sleep is vital for good physical and mental health and wellbeing. However, some people need much less sleep than others. Sleep problems are common, and the reasons we struggle to sleep are likely to change throughout our lives. For example, illness, work or having a baby are possible causes. This article will explore why some people don't need much sleep and what you can do to improve your sleep if you're struggling.
| Characteristics | Values |
|---|---|
| Reasons | Illness, work, having a baby, long-ingrained behaviours, diet, health conditions, medications |
| Solutions | Wind-down time, quiet activities, light dinner, no spicy/fatty foods, no alcohol/caffeine |
| Research | A rare mutation in the ADRB1 gene was found in a family with three generations of short sleepers |
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What You'll Learn
- Sleep problems can be caused by illness, work, or having a baby
- Insomnia can be caused by long-ingrained behaviours, like staying up too late
- Eating a light dinner a couple of hours before bed can help you sleep
- Avoid caffeine and alcohol before bed
- A rare mutation in the ADRB1 gene means some people need less sleep

Sleep problems can be caused by illness, work, or having a baby
Sleep is vital for good physical and mental health and wellbeing. However, sleep problems are common, and the reasons we struggle to sleep are likely to change throughout our lives. For instance, illness, work or having a baby are possible causes.
Illness can cause sleep problems, and having a sleep disorder can make it harder to fight off illness or recover when you get sick. Sleep disorders include insomnia, sleep apnea, restless leg syndrome, narcolepsy and shift work sleep disorder. Insomnia can be caused by long-ingrained behaviours, such as staying up too late or engaging in stimulating activities before bed. It can also be caused by prescription or over-the-counter medications. Sleep apnea is when your muscles relax as you sleep, causing the soft tissue in the back of your throat to collapse and block your airway. Restless leg syndrome is the urge to move your legs when you rest. Narcolepsy is when you can't regulate when you fall asleep or how long you stay awake. Shift work sleep disorder is when you have trouble falling asleep and staying asleep due to your work schedule.
Work can also cause sleep problems. This could be due to long-ingrained behaviours, such as staying up too late or engaging in stimulating activities before bed. It could also be due to shift work, which can cause shift work sleep disorder.
Having a baby can also cause sleep problems. This could be due to separation anxiety, overstimulation or overtiredness. It could also be due to illness, as sleep problems may occur when a baby is sick.
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Insomnia can be caused by long-ingrained behaviours, like staying up too late
Sleep problems are common, and the reasons we struggle to sleep are likely to change throughout our lives. For example, illness, work or having a baby are possible causes. Insomnia can be caused by long-ingrained behaviours, like staying up too late or engaging in stimulating activities before bed. It's impossible to sleep when the weight of the day is pressing on you. Finding a sense of calm before bed isn't easy—especially when you can't unplug from the demands of your day.
To improve your sleep, establish a wind-down time. Do a quiet, relaxing activity before bed that doesn't involve a screen. Talk to a friend or family member, sew, or read a real book—not one on a backlit tablet device. Just allow yourself to have quiet time. And don't sleep with your smartphone on your bedside table. Eat dinner at least a couple of hours before bedtime and keep the meal light. Avoid spicy, fatty foods, as well as alcohol and caffeine. Also, don't drink too many fluids before bed. Having to constantly get up to go to the bathroom can disrupt your sleep, too.
A few sleepless nights are usually nothing to worry about, but it can become an issue if a lack of sleep starts to affect your daily life. It's important to appreciate why we sleep: to rest and repair our mind and body. It's vital for good physical and mental health and wellbeing. To better understand why some people need much less sleep than most, researchers have carried out studies to look for genes involved in unusual sleep patterns. They found a rare mutation in the ADRB1 gene that was being passed through the family.
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Eating a light dinner a couple of hours before bed can help you sleep
Sleep is important for good physical and mental health and wellbeing. Sleep problems are common, and the reasons we struggle to sleep are likely to change throughout our lives. For example, illness, work or having a baby are possible causes. A few sleepless nights are usually nothing to worry about, but it can become an issue if a lack of sleep starts to affect your daily life.
Establishing a wind-down time before bed can help you sleep. This means doing a quiet, relaxing activity that doesn't involve a screen. For example, you could talk to a friend or family member, sew, or read a book. It's also important to avoid stimulating activities before bed, such as staying up too late.
Eating a light dinner a couple of hours before bed can also help you sleep. It's best to avoid spicy, fatty foods, as well as alcohol and caffeine. Drinking too many fluids before bed can also disrupt your sleep, as you may need to get up to go to the bathroom.
Some people naturally need less sleep than others. For example, a study found that a rare mutation in the ADRB1 gene was present in a family with three generations of naturally short sleepers.
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Avoid caffeine and alcohol before bed
Sleep is vital for good physical and mental health and wellbeing. Sleep problems are common, and the reasons we struggle to sleep are likely to change throughout our lives. Illness, work or having a baby are possible causes. A few sleepless nights are usually nothing to worry about, but it can become an issue if a lack of sleep starts to affect your daily life.
To improve your sleep, it is important to avoid caffeine and alcohol before bed. Caffeine is a stimulant and can keep you awake, while alcohol can disrupt your sleep patterns and make it difficult to get a good night's rest. It is also important to avoid eating a heavy meal or spicy, fatty foods before bed, as these can make it difficult to fall asleep and can disrupt your sleep throughout the night. Instead, opt for a light meal a couple of hours before bedtime.
In addition to avoiding caffeine and alcohol, it is also important to establish a wind-down routine before bed. This means doing something quiet and relaxing that doesn't involve a screen. For example, you could talk to a friend or family member, sew, or read a book. It is also a good idea to avoid looking at your smartphone or other electronic devices too close to bedtime, as the blue light from these devices can interfere with your sleep.
By avoiding caffeine and alcohol, eating a light meal, and establishing a relaxing wind-down routine, you can improve your sleep quality and get the rest you need to function at your best during the day.
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A rare mutation in the ADRB1 gene means some people need less sleep
Sleep is vital for good physical and mental health and wellbeing. Sleep problems are common, and the reasons we struggle to sleep are likely to change throughout our lives. Illness, work, or having a baby are possible causes. However, some people need less sleep than others due to a rare mutation in the ADRB1 gene.
In 2019, a team led by Dr Ying-Hui Fu and Dr Louis Ptáček at the University of California, San Francisco, carried out a study in a family with three generations of naturally short sleepers to look for genes involved in their unusual sleep patterns. They found a rare mutation in the ADRB1 gene that was being passed through the family. This mutation means that some people need less sleep than most.
If you are struggling to sleep, there are a few things you can try. Firstly, establish a wind-down time before bed. Do a quiet, relaxing activity that doesn't involve a screen, such as reading a book or talking to a friend or family member. Avoid stimulating activities and try to unplug from the demands of your day. You should also eat dinner at least a couple of hours before bedtime and keep the meal light. Avoid spicy, fatty foods, alcohol, and caffeine. Finally, make sure you don't drink too many fluids before bed, as this can disrupt your sleep.
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Frequently asked questions
Sleep is important for resting and repairing your mind and body. It's vital for good physical and mental health and wellbeing.
There are many reasons why you might not be getting enough sleep. Some people have long-ingrained behaviours that make it difficult to sleep, such as staying up too late or engaging in stimulating activities before bed. Other reasons include illness, work, or having a baby.
There are several things you can do to improve your sleep. These include establishing wind-down time before bed, eating dinner a couple of hours before bedtime, and avoiding spicy, fatty, and alcoholic foods, as well as caffeine and too many fluids, before bed.
Yes, researchers at the University of California, San Francisco, found a rare mutation in the ADRB1 gene in a family with three generations of naturally short sleepers. This gene was being passed down through the family.













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