By Toochi Ejiofor
Edited by Bababunmi Agbebi
You slept for seven, maybe even eight hours, but you still wake up exhausted. For many people, tiredness is no longer just a lack of sleep. Sometimes, the problem lies in how you sleep, or what your body is dealing with before and after bedtime.
According to the World Health Organization, adults need enough quality sleep to support brain function, immunity, and overall health. The Centers for Disease Control and Prevention recommends at least seven hours of sleep for adults, but quantity alone does not always guarantee rest.
Here are some reasons you may still feel tired after sleeping:
- You’re Dehydrated
Fatigue is one of the most common signs of dehydration. When your body lacks enough fluid, blood circulation and oxygen flow can slow down, making you feel weak and sluggish. Other signs include headaches, dry mouth, dark urine, and dizziness. Medical experts note that even mild dehydration can affect your energy levels.
Tip: Keep water close during the day and increase intake in hot weather.
- Your Diet Is Draining You
What you eat affects how you feel. Skipping meals, eating too much processed food, or relying heavily on sugar can cause energy crashes. Your body needs steady nutrients like protein, fibre, iron, and healthy carbs to maintain energy. Iron deficiency, for example, is a common cause of tiredness because it affects oxygen transport in the blood.
Tip: Include foods like eggs, beans, oats, vegetables, and fruits in your meals.
- Stress Can Keep Your Body Awake
You may be sleeping, but stress can stop your body from fully relaxing. High stress levels raise cortisol, the body’s main stress hormone, which can affect sleep quality and leave you feeling unrested. This means you may spend enough hours in bed without reaching deep, restorative sleep.
Tip: Reduce stimulation before bed and create a wind-down routine.
- Your Screen Time Is Affecting Your Sleep
Scrolling through your phone before bed may seem harmless, but the blue light can affect your circadian rhythm and suppress melatonin production, the hormone that helps you sleep. Health experts advise limiting screen use before bed because it can make it harder to fall asleep and reduce sleep quality.
Tip: Try putting away your phone at least 30–60 minutes before sleep.
- Inadequate Sleep
Sometimes, the issue is simple: you may not actually be getting enough quality sleep. Sleep is essential for physical and mental restoration. During the night, the body moves through several sleep cycles, and the deepest stages of sleep are where much of the body’s repair and brain recovery happen. According to experts at the University of Michigan Medical School, missing enough deep sleep can leave a person feeling unrefreshed and fatigued, even after spending hours in bed.
Tip: Aim for 7–9 hours of uninterrupted sleep and try to sleep and wake at the same time each day. Consistency helps your body build a healthier sleep rhythm.
If you’re constantly tired despite getting enough sleep, it may be worth looking at your daily habits or speaking to a doctor. Persistent fatigue can sometimes signal deeper health concerns.
