Why You Keep Waking up at the Same Time Every Night

You Should Know: The list of health benefits linked to quality sleep goes on and on — but knowing the upsides doesn’t always stop your body from waking up at 3 a.m. That’s because your brain cycles through light and deep sleep stages in roughly 90-to-110-minute intervals, and those lighter stages naturally cluster toward the morning hours. Your body also ramps up cortisol production in the early hours as it prepares to wake you.

Going Deeper: However, the reason you stay awake at this time is a different matter altogether. It’s much harder to fall back asleep if you’re dealing with stress and anxiety, and checking the clock can make that worse by increasing frustration and making your brain more alert. Afternoon caffeine and alcohol before bed can also contribute to fragmented sleep.

Takeaway: Keeping a consistent sleep and wake time can help set your body clock. And if you’ve been lying there for more than 20 minutes, sleep experts say getting out of bed is a better option than staring at the ceiling.

Bottom Line: Waking up in the middle of the night is a totally normal part of sleep. It only becomes a problem when anxiety or stressful thoughts keep you awake.