It is very important for college students to cultivate the good habit of going to bed early and getting up early, which not only helps to improve learning efficiency, but also keeps them healthy. Here are some suggestions:

1. Make a reasonable timetable: Make a reasonable timetable according to your own curriculum and personal needs. Make sure you have enough time to rest and sleep every day.

2. Avoid staying up late: Try to avoid staying up late at night, especially when the exam is approaching or important homework is completed. Staying up late will affect the energy and attention of the next day and reduce the learning effect.

3. Control the time of using electronic devices: Excessive use of electronic devices such as mobile phones and computers at night will stimulate the brain and make it difficult to fall asleep. Try to stop using electronic devices one hour before going to bed. You can choose to read books or do relaxing activities.

4. Establish a good sleeping environment: keep the bedroom quiet, comfortable and dark. You can use earplugs, eye masks and other tools to help you fall asleep.

5. Exercise: Moderate physical exercise helps to consume energy in the body and promote sleep. But be careful not to exercise too hard before going to bed, so as not to affect sleep.

6. Adhere to regular work and rest: Try to keep the time of getting up and going to bed the same every day, so that the body can adapt to a fixed work and rest time.

7. Avoid taking a long nap: If you need a nap, try to control it between 30 minutes and 1 hour, so as to avoid taking a long nap and affecting your sleep at night.

8. Seek help: If none of the above methods can improve the sleep problem, you can seek professional help and advice from the school counselor or doctor.