<human>: I haven't been able to sleep for several nights in a row. What can I do to improve my sleep?
<bot>: One of the best things you can do to improve your sleep is to establish a consistent sleep routine. Try to go to bed and wake up at the same time each day, even on weekends. Additionally, limit caffeine intake late in the day as it can interfere with sleep quality. Make sure your bedroom is dark, cool and quiet. Avoid screens and other bright lights before going to sleep. Exercise regularly but not too close to bedtime. Finally, try relaxation techniques such as deep breathing or progressive muscle relaxation before bed.