Somewhere around the third month, the bed stops being a place you sleep. It becomes the place where you lie still and wait, counting the hours left before the alarm and doing the maths on how wrecked tomorrow will be. By then you've probably tried the tea, the magnesium, the melatonin and the blackout curtains. Some of it helped for a week.
Most of that advice skips the part that matters. Your body still knows how to sleep. What has changed is what the bed means to your brain. It has learned that bed is where you stay alert, and every extra hour you spend there trying teaches it the lesson again.
The harder you try, the more awake you get
Sleep runs on two systems. The first is sleep pressure: a chemical called adenosine builds up in your brain from the moment you wake, and the longer you're up, the heavier it gets. Your body clock is the second, and it decides the window when that pressure is allowed to pull you under.
Insomnia usually starts with a real cause, like a stressful month, a new baby or a bout of pain. The cause passes. What stays are the habits you built to cope with it: going to bed earlier to "bank" rest, lying in on Sunday, staying in bed at 3am because getting up feels like admitting defeat.
Each of those moves spends sleep pressure. Nine hours in bed for six hours of sleep means the sleep gets spread thin across the night, with long wakeful gaps in between. And those gaps happen in one specific place, which your brain files away. A few hundred nights of that, and the bedroom sets off alertness all by itself. Pavlov's dogs learned to drool at the sound of a bell; your brain now switches on at the sight of your pillow.
This is why effort backfires. Sleep arrives when you stop steering, and lying there willing it to come is steering.
If this has only been going on for a few weeks, you're at the easiest point to stop it. Keep getting up at your usual time, however the night went, and skip the lie-in, the afternoon nap and the early night. They feel like recovery, and they're the habits that turn a bad month into chronic insomnia.
The treatment doctors rank above every pill
Two medical bodies have reviewed the trials, and both came to the same answer. The American College of Physicians recommends that every adult with chronic insomnia get cognitive behavioural therapy for insomnia, CBT-I, as the first treatment, before any medication. So does the American Academy of Sleep Medicine, with its strongest recommendation.
Most articles describe CBT-I as relaxation and breathing exercises. Those are a small part of it. The parts doing the heavy lifting are two techniques that sound backwards the first time you hear them: sleep restriction and stimulus control. A 2021 analysis of trials found that sleep restriction on its own cut insomnia severity about as much as the full CBT-I programme, at least in the short term and in small trials.
The same sleep academy also advises doctors against treating chronic insomnia with sleep hygiene alone. Dark room, no screens, no late coffee. All good habits. On their own, once insomnia has settled in, they rarely fix it, and they're often the entire plan people are handed.
Sleep restriction: spend less time in bed to sleep more
People resist this one, so the logic comes first. You compress your time in bed down to roughly the amount you're actually sleeping. Sleep pressure builds higher, the broken sleep consolidates into one solid block, and your brain relearns that bed means sleep. Once the block is solid, you widen the window.
How to run it:
- Keep a sleep diary for two weeks. Each morning, note when you went to bed, roughly how long you slept, and when you got up. Estimates are fine.
- Work out your average sleep. If you're in bed eight and a half hours and sleeping about six, your number is six.
- Set your window to that number, with a floor of five and a half hours. Pick your wake time first, because it's the anchor, then count backwards. Six hours with a 6:30 alarm means bed at 12:30.
- Hold the wake time seven days a week, weekends included. It's the rule that retrains the clock.
- Stay up until the window opens, even if you're sleepy at 10pm. Low light, something dull.
- Widen by 15 minutes a week once you're sleeping most of the time you're in bed (about 85–90% of it). With the 12:30 bedtime above, a good week moves it to 12:15, the next to midnight. Keep widening until the extra time stops turning into sleep.
The first week or two is rough. Expect to feel more tired before you feel better. That tiredness is sleep pressure building, which is the whole point, and it's usually the moment people quit, right before it starts working.
Judge it by how solid the night is, and give the hours time. In the trials, the time it took to fall asleep and the time spent awake at night both dropped a lot, while total sleep barely moved at first. The hours come back as you widen the window. What changes first is that the night stops being a fight.
If you'd rather follow the programme on paper, the workbook by Jack Edinger, who led the 2021 sleep guideline, and psychologist Colleen Carney walks through the same diary, window and weekly adjustments one session at a time.
Check with a doctor before you start if you have bipolar disorder, epilepsy, suspected sleep apnoea, or if you drive for a living or operate machinery. The short-term sleepiness matters more in those cases, and a clinician can run a gentler version.
Stimulus control: give the bed one job
Sleep restriction builds the pressure, and stimulus control fixes the association. The rules are simple and strict:
- Go to bed only when you're sleepy. Tired and sleepy feel different: sleepy means your eyes are closing.
- Use the bed for sleep and sex. Scrolling, working, watching series and arguing all happen somewhere else.
- If you're awake and getting frustrated, get up. Go to another room with dim light, read something undemanding, and come back when you're sleepy again. Repeat as often as it takes.
- Keep the fixed wake-up time from above, whatever the night was like.
- Skip daytime naps while you're retraining. They spend the pressure you need at night.
Set the room up once and stop tinkering. Dark, cool and quiet: use or an eye mask for the light, and earplugs or steady background noise if your street is loud. Past that point, a better bedroom adds very little.
Leave the clock out of it. Turn it to the wall. Checking the time at 3am starts the countdown maths, and the maths is what keeps you up.
For the racing mind, deal with it before bed. Spend five minutes writing tomorrow's to-do list, and make it specific: the email you owe, the call about the car, the form due on Thursday. In a sleep-lab trial, people who wrote a to-do list fell asleep faster than people who wrote about what they'd already done that week, and the more specific the list, the faster they dropped off. If the racing mind is the main thing keeping you up, by sleep psychologists Colleen Carney and Rachel Manber is built around it.
Where the remedies fit
Supplements work best as extras on top of the two techniques above. The evidence behind each one varies a lot, and most of the trials are small.
Magnesium has low-quality evidence behind it. A review of three small trials in older adults found people fell asleep about 17 minutes faster than on placebo. It's cheap and reasonable to try, especially if your diet is low in it.
Saffron extract had one of the better trials: 120 adults with poor sleep took 14 or 28 mg an hour before bed for four weeks and rated their sleep quality better than the placebo group did.
Ashwagandha showed a small effect across five trials, larger in people with diagnosed insomnia taking at least 600 mg a day for eight weeks or more. Rare cases of liver injury have been linked to it, and it's a poor fit for anyone with a thyroid condition.
Tart cherry juice and kiwi come from small studies: fifteen older adults in the cherry trial, twenty-four people and no placebo group in the kiwi one. Two kiwis an hour before bed is a pleasant experiment with no downside. Treat it as that.
Melatonin and valerian are the two most people reach for first, and the American Academy of Sleep Medicine suggests doctors avoid both for chronic insomnia. Melatonin earns its place for a different problem: resetting your clock after jet lag or a shift change, at small doses.
If you take any prescription medicine, check the combination before adding herbs. Ashwagandha, St John's wort and several others interact with common drugs.
When it's something else
Some insomnia belongs to another condition, and no routine fixes that. See a doctor if:
- you snore loudly, gasp, or someone has seen you stop breathing (sleep apnoea)
- your legs crawl or jerk when you lie down (restless legs)
- low mood or constant worry came before the sleepless nights
- the problem started with a new medication
- you've slept badly at least three nights a week for three months
That last one is the medical definition of chronic insomnia, the point where CBT-I is the recommended first treatment, through your doctor or a structured online programme.
The bed has to be retrained
Everything you tried was an attempt to add something at night: a pill, a tea, a smell, a gadget. The approach with the strongest evidence takes things away instead: hours in bed, and the nightly fight to fall asleep. It holds one thing still, the time you get up, and builds everything else around it.
Start the diary tomorrow morning. In two weeks you'll know your number, and you'll have a window to protect.
Want to know which remedies are worth adding on top? 9 Natural Remedies for Insomnia That Will Transform Your Sleep Tonight — the supplements, foods and evening habits that can help once the method above is in place.
Lying awake replaying the day? The Stress-Sleep Vicious Cycle: How to Fix Both at the Same Time — how stress keeps the mind running at night, and what to do in the evening after a hard day.
Sleeping better and still running on empty? Why Am I Always Tired: When Chronic Exhaustion Has a Cause That Sleep Can't Fix — separates tiredness from fatigue and walks through the mineral, thyroid and stomach-acid causes that more sleep leaves untouched.
Know someone who keeps saying they lie awake for hours, whatever they try? Send this to them quietly. It gives them a plan that starts with a notebook tomorrow morning.
Disclaimer: This article is general information. For advice about your own sleep, medication or health, talk to a doctor. If anything under "When it's something else" applies to you, or you take medication, check with a clinician before starting sleep restriction or new supplements.
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