Habits built over months or years are hard to break - especially if they involve the Circadian Rhythm or your internal natural clock. However, you can improve your sleep quality and routine by making small, gradual adjustments. If you are recovering from jet lag, you are likely to see improvements within days. If you are resetting the routine of a lifetime, you might need between a few weeks and a few months. Read the full guide to learn more about improving your sleep and the best natural ways to change your sleep habits.