Of course, this will also vary somewhat from person to person. But certainly, if you’re going from LA to Chicago, it understandably won’t take you as long to adjust as when you go from LA to Hong Kong.
If you are changing work schedules, taking an earlier than usual morning class, or have to wake up earlier for another reason, it might take about a week or two to become fully acclimated to your new schedule. The transition involves an earlier wake up time for you, while also convincing your brain that an earlier sleep time is necessary to maintain the same amount of sleep overall. Although the adjustment does take time, know that it will occur, and you should find yourself progressively getting tired earlier on in the day.
For people with a diagnosed sleep condition or disorder, trying to change patterns of sleep and wakefulness can be very difficult. Adolescents with delayed sleep phase syndrome (DSPS), for example, who go to sleep extremely late and wake up very late, might only be able to successfully change their sleep and wake times consistently after 1 or 2 months of effort.
How to Help Adjust My Sleep Schedule
There are several steps you can take to make any sleep schedule change easier on yourself. Even if you’re not looking to make a sleep pattern change, many of these tips can help improve the amount and quality of your sleep.