Your Weekend Sleep-In Is Disrupting More Than Just Monday

Sleeping two or three hours later on weekends creates what researchers call social jet lag — the biological equivalent of flying across time zones and back every week. Your circadian clock can't reset that fast. The result: groggy Mondays, poor sleep Sunday night, and a weekly cycle of sleep debt that never fully resolves. If you need to catch up, a short nap early in the afternoon is far less disruptive than a late wake-up. Consistency beats compensation.