If you are returning from vacation or an extended absence, you body undergoesperiod of adjustment…

➤ How can I speed up acclimatization after an extended absence?
Use timed light exposure in the morning to advance your circadian clock and avoid bright screens before bed. Keep consistent sleep and meal times, stay hydrated, exercise during daylight, limit alcohol and caffeine late in the day, and consider short-term melatonin (0.5–3 mg) an hour before bedtime if advised.