People who often work night shifts are prone to sleep deprivation and reduced sleep quality. Here are some ways to improve sleep quality:

1. Maintain a regular sleep time: Try to have a regular sleep schedule every day. Go to bed and wake up at the same time to help your body develop a regular biological clock.

2. Create a comfortable sleeping environment: Maintain a quiet, cool, dark sleeping environment, and use earplugs, eye masks and other tools.

3. Relax your body and mind: Doing some relaxing activities before going to bed, such as soaking your feet, listening to soft music, taking deep breaths, etc., can help your body and mind relax and enter a sleep state.

4. Avoid spicy foods and drinks: Avoid spicy, greasy, and irritating foods and drinks at night, such as coffee, tea, chocolate, etc.

5. Exercise: Moderate exercise can promote sleep, but be careful not to perform strenuous exercise before going to bed to avoid affecting sleep.

6. Consider using sleep aids: such as sleep masks, hypnotic music, etc., but consult a doctor before using them.