If you dont sleep well, you may have insomnia. It can leave you feeling tired all day. That makes it hard to focus and get things done.

This is a disorder of your brain and nervous system. Your brain has trouble managing sleep/wake cycles. You sleep poorly, and you feel very drowsy during the day. You may fall asleep without warning at inappropriate and dangerous times. This can disrupt your life.

This is a sleep disorder. It gives you extremely frightening dreams that disrupt your sleep. It can make you afraid to go to bed, which leads to being tired all day.

This condition makes you feel like you need to move your legs when you are resting. It can keep you awake at night. And trips in a plane or a car can be uncomfortable.

This is a sleep disorder that's most common in children. Those who have it wake up suddenly during the night. They can be scared and confused. You may not be able to calm them down.

This is a behavior disorder that usually affects your deep sleep. During a sleepwalking episode, you may get out of bed, perform complex tasks and interact with other people. But you are still in a state of sleep, and you aren't aware of what you are doing. When you wake up, you may have no memory of what you did. This can be dangerous. It can cause problems in your life.

Feeling tired all the time is different from occasionally overdoing it. It's unrelenting. Even after a full night's rest, you feel unrefreshed. Your tiredness drains you. You can't focus. Why do you feel this way? And how can you get help?