So when you're getting eight hours and still feeling tired the next day, it's frustrating. There are four likely culprits behind your low energy: your sleep need is more than eight hours, you're getting less sleep than you think, you've got sleep debt to pay back, or you're out of sync with your circadian rhythm.
If you or a loved one feel sleepy or fatigued, despite having 7-8 hours of sleep, it could indicate poor sleep quality or be a sign of an underlying sleep disorder. If you have questions or concerns about your sleep health, please speak with your primary care provider.
Even something simple like sleeping in for longer than usual can cause you to get out of sync and wake up feeling tired. This is known as recovery sleep, and research shows it can make sleep inertia worse — even though it's a good thing you're catching up on sleep.
So why do people think they are able to function optimally on 6 hours of regular sleep? This is because of a natural human phenomenon known as 'renorming'. Renorming means that we are only able to compare how we feel today to how we felt yesterday or the day before.
Hypersomnia is excessive sleepiness. There are many causes of excessive sleepiness, including insufficient or inadequate sleep, sleep disorders, medications and medical or psychiatric illnesses. The characteristics of hypersomnia vary from one person to the next depending on age, lifestyle and underlying causes.
How Much Sleep Is Too Much? Sleep needs can vary from person to person, but in general, experts recommend that healthy adults get an average of 7 to 9 hours per night of shuteye. If you regularly need more than 8 or 9 hours of sleep per night to feel rested, it might be a sign of an underlying problem, Polotsky says.
Everyone needs a certain number of sleep hours, and if you don't get what you need, you may find it difficult to hop out of bed feeling refreshed. Finally, sleep disorders could be the cause. Various sleep disorders can reduce the quality of your sleep and make it so your night isn't restful.
The bare minimum of sleep needed to live, not just thrive, is 4 hours per 24-hour period. Seven to 9 hours of sleep are needed for health, renewal, learning, and memory. Disruption of the sleep cycle from shift work creates problems for the quality and quantity of sleep.
Should you go back to bed if tired? Waking up tired doesn't necessarily mean you should go back to bed and sleep more, especially if you're getting the recommended 7-9 hours of sleep each night. Experiencing a little tiredness upon waking is totally normal and should subside within 15 minutes to an hour.
For most people, feeling tired when you wake up is the result of sleep inertia, which is a natural feeling you experience as you transition between being asleep and awake. This feeling generally dissipates between 15 and 60 minutes after waking, but for some it can last longer.
The longest recorded time a person has slept is 11 days, set by Randy Gardner in 1964. Gardner was a high school student at the time, and he stayed awake for 264 hours (11 days and 24 minutes) as part of a science fair experiment.
Going to bed 15 to 30 minutes earlier each night can make a big difference; gradually go to bed 15 minutes earlier until you are at your desired bedtime. Avoid napping during the day. The occasional nap is fine — especially if you need the sleep — but try to keep naps infrequent and brief (less than 30 minutes).
Dysania means an extreme difficulty rising from bed or an inability to leave the bed. Dysania is closely associated with clinomania, which is an obsession with or profound desire for staying in bed. These terms are not widely recognized by the medical community. Some professionals use the term clinophilia.
It's recommended that adults get between 7 and 9 hours of sleep per night. But Dr. Lance suggests finding the total amount of sleep that works for you. So, 7-1/2 hours might work for you while your partner may need 9 hours.
Sleep and Aging
Older adults need about the same amount of sleep as all adults—7 to 9 hours each night. But, older people tend to go to sleep earlier and get up earlier than they did when they were younger. There are many reasons why older people may not get enough sleep at night.
According to a new study, the best time to sleep is from 10pm to 4am. People going to bed before 10 or after 11 are at greater risk for heart disease, compared to the average person. In this timeframe people have a 25-percent lower chance of developing heart disease than those who fall asleep after midnight.
Take the time you plan to wake up (say, 6 a.m.) and subtract the recommended 7 to 9 hours of sleep (which is around 9 to 11 p.m. the night before). This is your bedtime ballpark.
Common causes of tiredness and fatigue include: not getting enough sleep or finding it hard to get to sleep (insomnia) an unhealthy lifestyle (such as having an unhealthy diet and not getting much exercise) stress, depression and dealing with life challenges, such as bereavement or looking after a new baby.
It's the body's way of recharging and healing. For some people, it's also a great escape. Dreaming is fun, and sleep is a way to get away from problems in the real world. Sleep enthusiasts know that a good snooze is a great cure for things like stress, anxiety, and a bad mood.