Do you often wake up from a deep sleep and notice the clock says around 3 a.m.?
If so, you are far from alone. Many people experience nighttime awakenings, and while the occasional restless night is normal, frequent sleep interruptions can leave you exhausted, unfocused, and concerned about your overall health.
Sleep experts and wellness voices have pointed to several possible reasons for waking during the early morning hours. One explanation, according to author and health influencer Dave Asprey, may involve changes in blood sugar levels during the night.
Asprey has suggested that people who wake between 3 a.m. and 5 a.m. and struggle to fall back asleep may be experiencing a drop in blood sugar. In response, the body may release stress hormones such as cortisol and adrenaline, which help raise glucose levels—but can also leave you wide awake.
“For most people who wake up between 3am to 5am and can’t go back to sleep, that is a crash in your blood sugar,”
he said in a video shared with his Instagram followers.
Cortisol and adrenaline are part of the body’s natural stress response. They help mobilize stored energy, including glucose from the liver and muscles. The issue, Asprey explains, is that these same hormones can also stimulate alertness.
“While the brain gets what it wants, you don’t get your sleep.”
Research has also linked chronic stress with higher cortisol and adrenaline levels, both of which may interfere with sleep quality. Cortisol normally follows a daily rhythm, rising in the morning to help the body wake up and gradually falling throughout the day. At night, cortisol should be lower, allowing the body to relax.
When stress keeps cortisol elevated into the evening, the body may remain on alert instead of settling into deep, restorative sleep. That can make it harder to fall asleep and easier to wake during the night.
As a possible solution, Asprey suggests having a small bedtime snack. He specifically mentions raw honey, collagen, MCT oil, or a combination of the three.
MCT oil, short for medium-chain triglyceride oil, is a fat source often derived from coconut oil or palm kernel oil. Because it is absorbed quickly, it is commonly used in ketogenic diets and wellness routines for energy and focus.
Still, anyone dealing with frequent nighttime waking, blood sugar concerns, or ongoing insomnia should consider speaking with a healthcare professional, especially if the problem is persistent or affecting daily life.
Sleep is often treated like a luxury in a busy world, but it is essential. Good sleep supports memory, emotional balance, immune function, energy, and overall health.
There are also practical sleep habits that may help improve rest.
A comfortable mattress, supportive pillows, and breathable bedding can make a difference, especially if pain or overheating causes you to wake up. Keeping the room dark with blackout curtains or a sleep mask can also help, since light can interfere with the body’s sleep signals.
Noise can be another major disruptor. Some people sleep better with a white noise machine, a fan, or timed sleep sounds to cover background noise.
Temperature matters too. Many sleep experts recommend keeping the bedroom cool, around 60 to 67°F, or 15 to 19°C, for better sleep.
Caffeine should generally be limited later in the day. Coffee, tea, soda, and energy drinks may provide a quick boost, but they can also make it harder to fall asleep at night. Alcohol can be misleading as well. While it may make people feel sleepy at first, it often leads to lighter, more disrupted sleep later.
Screens are another common problem. Phones, laptops, and televisions emit light that can signal the brain to stay alert, especially when used close to bedtime.
Stress management may be one of the most important habits of all. Techniques such as controlled breathing, mindfulness meditation, progressive muscle relaxation, or guided imagery may help the body shift into a calmer state before sleep.
Naps can also affect nighttime rest. A short nap of around 20 minutes earlier in the afternoon may be helpful, but long or late naps can make it harder to fall asleep at bedtime.
Waking up at 3 a.m. can feel frustrating and mysterious, but it is not unusual. Whether the cause is stress, blood sugar changes, poor sleep habits, or something else, small adjustments may help the body return to deeper, more consistent rest.