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   Sleep plays an extremely important role in our life. Getting enough sleep is important in maintaining our daily activities. 

   Lack of sleep makes it impossible for us to concentrate on anything. People can fall asleep when they study in classes or workplaces. They can also feel sleepy when watching TV or reading book at their own home. To sleep better, people should get useful things if they want to sleep well. It is very necessary for them to have a soft pillow and a blanket. They also get some teddy bears if they want. People should not use smartphones and computers too much because they will have difficulty in getting into sleep. With the development of the world, people may not get enough sleep. They may work too late to get used to sleeping early. Noise pollution is one of the biggest problems that make people unable to sleep in big cities. Exposure to blue light from electronic devices causes sleeplessness among young people.

   Getting a good night's sleep helps people protect the brain and prevent memory diseases. Therefore, people need to get enough sleep to protect their health.