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How to ensurequality sleep Don’t eat before you sleep. While you aresleeping, your digest system also needs rest. If you eat something before yougo to bed, it will disturb your sleep. Also avoid refreshing beverage like coke,coffee and tea before you sleep. Turn off the light. Sleeping with the lightson is harmful to your health. It may damage you sight and even lead to cancer. Lightduring sleep affects biological clock as well. So keep your room as dark aspossible when you sleep. Set a regular biological clock. Set your body clock regularly by getting up and going to bed at thesame time every day. It makes a rulable patter to your body to follow. Generalspeaking, it’s easier to adjust the time of getting up. So, you can start fromgetting up at a constant time. Select suitable bedclothes. Choose bedding thatis comfortable to you. For example, choose moderate pillows that conform to the shape of your head and neck. And keep your bedding clean andneat otherwise it may cause you sick.