Your Sleep Breaks Apart at 3 a.m., and Stays Broken
Waking between 2 and 4 a.m. and lying alert with no obvious reason is one of the earliest signs of dysregulated cortisol. Under normal conditions, cortisol follows a diurnal curve: low at night, rising sharply around 6 a.m. to pull you out of sleep. Chronic stress flattens and distorts that curve. Cortisol spikes at the wrong hours, fragments deep sleep, and leaves you functional but never fully rested. You fall asleep without difficulty. It's the staying asleep that fails. Over weeks, the body starts running on stress hormones where it should be running on recovery, and no amount of early bedtimes corrects the underlying trigger.
