1. Make your bedroom as dark as you can The light will effect the quality of your sleep
2. Keep your bedroom really silent Science proved that noise can effect your sleep. If necessary, use the ears-cover
3. Don't bring your mobile phone into the bedroom. The electronic waves from your phone is the reason makes difficult to fall asleep
4. Set the alarm You should set your alarm to go to sleep early and wake up early
5. Read book 15 minutes before going to sleep This will make you relax and get easy to sleep. But, stay away from those scary, thrilling books
6. Choose mattress Choose a suitable, quality mattress will make you feel comfortable
Besides, you can take a bath with warm water and your favourite smell, drink a cup of warm milk. That will make you feel relax.