Addiction and Sleep: Why You Can't Switch Off (and How to Fix It)

If there is one thing almost everyone I work with struggles with in early recovery, it is sleep. You finally put the substance down, you expect to start feeling better — and instead you are lying awake at three in the morning, wired and exhausted at the same time, wondering why your own body will not switch off. I remember it vividly. It is one of the most demoralising parts of getting clean, and it is also one of the least talked about. So let me explain what is going on, because understanding it makes it far easier to get through.

Here is the short version: substances wreck your sleep while you are using, and then your sleep gets temporarily worse before it gets better when you stop. Both of those are normal. Neither of them lasts. And there are genuinely useful things you can do in the meantime that are not just "have you tried a warm bath".

How substances wreck your sleep

Almost every drug of misuse interferes with sleep, even the ones that seem to help you nod off. They do it in different ways, but the end result is the same — the deep, restorative sleep your brain and body actually need gets stolen from you.

• Stimulants — cocaine, speed, study drugs — keep your nervous system switched on. They delay sleep, fragment it, and rob you of the deep stages. You end up wired, then crashed, in a cycle that never delivers real rest.
• Alcohol is the great deceiver. It knocks you out fast, so it feels like a sleep aid — but it wrecks the second half of the night, blocks dream sleep, and has you awake at 4am with your heart going. Sedation is not sleep.
• Cannabis can help you drop off, but over time it suppresses dreaming, and many people find their sleep gets worse the more they rely on it — with vivid, disrupted nights when they stop.
• Sedatives and painkillers change the architecture of sleep too, and the body adapts, so you need them just to get the broken sleep you are already getting.

The cruel irony is that poor sleep then feeds the addiction. Exhausted, you have less willpower, lower mood, and worse judgement — which makes the next use more likely. It is a loop, and breaking it is one of the real prizes of getting clean.

The rough early-recovery sleep patch

Now for the part that catches people out. When you stop, your sleep often gets worse for a while before it improves. This is completely normal, and knowing it in advance takes a lot of the fear out of it.

Your brain has been leaning on the substance to regulate sleep, and it takes time to relearn how to do it alone. So in the first days and weeks you may get insomnia, broken nights, intense and strange dreams (your dream sleep coming back with a vengeance after being suppressed), restlessness, and that horrible wired-but-tired state. With stimulants in particular, the early crash can swing the other way into sleeping far too much for a spell. All of this is part of withdrawal, and it is your nervous system recalibrating — not a sign anything is wrong. My guide on your first 30 days off cocaine walks through how this opening stretch tends to unfold.

For most people the worst of it eases within a couple of weeks, and sleep continues improving steadily over the following months. The night you finally sleep properly again — and it will come — is one of the quiet milestones of recovery worth marking.

The broken sleep of early recovery is not your sleep being ruined. It is your sleep being rebuilt — and like any rebuild, it is messy before it is better.

Sleep hygiene that actually helps

You cannot force sleep, but you can build the conditions that let it return. None of this is magic, and not all of it will land on a given night — but done consistently, it genuinely moves the needle.

1. Anchor your times. Same wake time every day, weekends included, even after a bad night. A steady wake time is the single most powerful lever you have for resetting a broken body clock.
2. Get daylight early. Light in the morning, ideally outdoors, tells your body clock when the day starts — which helps it know when night is too.
3. Cut the obvious culprits. No caffeine after lunchtime, and go easy on the screens late on. Both keep a recovering nervous system switched on when it is trying to wind down.
4. Move during the day. Even a walk. Physical tiredness is your friend, and exercise improves sleep quality once you are past the first jittery days.
5. Build a wind-down. A dull, repeatable last hour — low light, no work, something calm — signals to your brain that the day is closing.
6. Do not lie there fighting it. If you are wide awake after twenty minutes, get up, do something boring in dim light, and go back when you feel sleepy. Lying there frustrated only teaches your brain that bed is a place of stress.

One more thing worth knowing: a huge number of slips happen when people are running on empty. Being overtired is one of the classic HALT states — Hungry, Angry, Lonely, Tired — where your defences drop and judgement goes with them. Protecting your sleep is not just about feeling better; it is genuine relapse prevention. I explain the HALT framework in full in my guide on HALT.

When to get more help

If your sleep is still badly broken well beyond the first month or two, or if the sleeplessness is being driven by anxiety, low mood, or thoughts you cannot put down, that is worth taking seriously rather than just gritting through. Persistent insomnia in recovery is often a signal that something underneath — the very thing the substance was managing — needs attention.

I would gently steer you away from reaching for sleeping tablets unsupervised, because for many people in recovery that simply swaps one dependence for another. Speak to a doctor about persistent insomnia, and if the sleeplessness is tangled up with the deeper reasons you were using, that is exactly the kind of thing one-to-one work is for. Good sleep is not a luxury in recovery. It is one of the foundations the whole thing rests on.

Gary Clinton

Ireland's addiction specialist — CBT-qualified therapist, bestselling author of Never Give Up, and an ex-addict himself. Private one-to-one help for professionals, online and worldwide.