According to your personal preference, put between 2 to 10 grams of tea leaves into your tea pot or glass bottle. Add enough boiling water to cover your tea leaves and after a few seconds, pour out just the water. This is to rinse the tea leaves from excess dust. Add boiling water once again to the pot or bottle and leave it for 30 to 60 seconds, the tea is now ready to drink. Keep on adding boiling water to the same leaves until they become tasteless. However, once the leaves have contact with water, they will expire after 24 hours. After the tea leaves have lost their taste or have expired, you can collect and dry them up, and then fill in your pillow to improve your sleep!