Each night, seven to nine hours of sleep is recommended. It is up to the individual to sleep and wake up at different times. A person's age, work schedule, and sleeping habits are just a few of the many factors that influence how much sleep they require.

However, it is generally recommended that you try to maintain a consistent sleep pattern and get up at the same time every day, as this may help to regulate your sleep cycle. Counting backward by 7 hours from the time you have to wake up in the morning may help you determine the best time to go to bed for your schedule

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