The sleeping time in university dormitories can be different due to personal habits and academic arrangements. Some people may be used to going to bed late and getting up late, while others may be more used to going to bed early and getting up early. So the sleeping time in the dormitory can be flexible.

However, ensuring adequate sleep is very important for physical and mental health. According to the National Sleep Foundation, adults should get 7-9 hours of sleep every night. If staying up late in the dormitory affects the quality of sleep, or causes fatigue and lethargy, you may need to consider adjusting your sleep time.

In this case, the following suggestions may help to improve the quality and regularity of sleep:

1. Set regular sleep time: try to ensure the same sleep start and end time every day, so as to develop regular sleep habits.

2. Create an environment conducive to sleep: keep the dormitory quiet, comfortable and dark, and use auxiliary tools such as sleeping masks, earplugs or white noise machines to help provide a better sleeping environment.

3. Establish relaxation habits before going to bed: Try to avoid using electronic devices before going to bed and avoid strenuous exercise or stimulating activities. Try relaxing activities, such as meditation, reading, gentle stretching and so on. Come and relax and get ready for bed.

4. Manage the daily schoolwork arrangement: arrange the time of study and activities reasonably, accomplish tasks during the day, and try to avoid accumulating a lot of study tasks at night.

5. When the problem seriously affects your sleep, ask for help: If you have serious sleep problems, or feel that your dormitory environment has seriously affected your sleep, you can consider asking for help from the school health counseling center.

In short, everyone has different sleep needs and habits. The key is to get enough sleep and try to create a good sleeping environment. If you feel that the sleep time and quality have been affected, you can consider adjusting it according to your personal needs.