Why Can't I Sleep? Understanding Insomnia and When to Get Help

Lying awake at 2am, staring at the ceiling, mind racing — most of us have been there at some point. But if it's happening night after night, and you're waking up tired no matter how long you spend in bed, you might be dealing with insomnia rather than just the odd bad night.

As a psychiatrist, sleep problems come up constantly in my work — often as the main complaint, and sometimes as a sign that something else is going on. This article covers common causes of insomnia, tips that actually help, and when it's time to get proper support.

What Is Insomnia?

Insomnia means having ongoing trouble falling asleep, staying asleep, or waking up too early and not being able to get back to sleep — even when you have enough time and a decent environment to sleep in. It's considered a problem when it happens at least three nights a week, for a month or more, and starts affecting how you function during the day.

Common Causes of Insomnia

• Stress or anxiety — a racing mind is one of the most common reasons people can't fall asleep
• Depression — can cause either trouble sleeping or sleeping too much
• Poor sleep habits — irregular bedtimes, screen time before bed, or napping too much during the day
• Caffeine or alcohol — both can disrupt sleep, even hours after you've had them
• Physical health conditions — pain, thyroid issues, or other medical conditions
• Shift work or jet lag — anything that throws off your body's natural sleep-wake rhythm

Signs Your Sleep Problems May Need Attention

• Taking a long time to fall asleep most nights
• Waking up often during the night, or waking up too early
• Feeling tired, irritable, or unfocused during the day, despite spending enough time in bed
• Worrying about sleep itself, which then makes it even harder to fall asleep
• Relying on sleeping pills or alcohol to fall asleep

Simple Tips for Better Sleep

• Keep a consistent sleep schedule — going to bed and waking up at the same time every day, even on weekends
• Limit screens before bed — the light and stimulation can make it harder to wind down
• Watch your caffeine intake — try to avoid it in the afternoon and evening
• Keep your bedroom for sleep — try to avoid working or scrolling on your phone in bed
• Get some daylight and movement — regular activity and sunlight exposure during the day support better sleep at night

These habits help many people, but if sleep problems continue despite trying them, it's a sign something more may be going on.

When Should You See a Doctor?

If poor sleep has lasted more than a few weeks, is affecting your mood, focus, or daily life, or you find yourself relying on medication or alcohol to fall asleep, it's worth getting a proper assessment. Sometimes insomnia is the main issue; other times, it's a sign of anxiety, depression, or another condition that needs its own treatment. Either way, getting to the root cause makes a real difference.