Sleep: what actually works and what's a waste of money
The most effective sleep fixes are rarely the most expensive. For chronic insomnia, cognitive behavioural therapy for insomnia, usually called CBT-I, has stronger evidence than sleep hygiene, supplements or gadgets. The best plan is to identify the sleep problem, treat medical causes such as sleep apnoea or restless legs, stabilise the body clock, and stop spending money on products that do not change behaviour or physiology.1
Key facts
- Sleep hygiene alone is usually not enough for chronic insomnia, although it can support a bigger plan.
- CBT-I, stimulus control, sleep restriction therapy and relaxation-based approaches have better evidence for chronic insomnia than most supplements.2
- Sleeping pills can help short term in selected people, but dependence, tolerance, falls, next-day sedation and rebound insomnia matter.1
- Snoring, witnessed pauses in breathing, gasping, morning headaches or daytime sleepiness may suggest sleep apnoea, not simple insomnia.5
- Trackers can reveal patterns, but they can also worsen sleep anxiety if you start chasing a perfect score.
First, name the sleep problem
"I sleep badly" is not specific enough. Some people cannot fall asleep. Some wake at 3am. Some sleep eight hours but wake exhausted. Some fall asleep easily but wake gasping. Some shift their body clock later and later. Some sleep badly because of pain, reflux, menopause symptoms, alcohol, stimulants, anxiety, depression, medication, restless legs or caring duties.
NHS insomnia guidance describes insomnia as regularly having problems sleeping, including difficulty getting to sleep, waking during the night, waking early, not feeling refreshed, and problems in the day such as tiredness or difficulty concentrating.1 That pattern is different from sleep apnoea, narcolepsy, circadian rhythm disorder or a medical problem that keeps waking you.
Before buying anything, write down sleep timing, wake timing, naps, caffeine, alcohol, light exposure, exercise, pain, medicines, screens, snoring, breathing pauses, restless legs, hot flushes and mood for two weeks. The diary often shows the problem faster than a wearable score.
Practical rule: the intervention should match the mechanism. CBT-I helps conditioned insomnia. CPAP helps obstructive sleep apnoea. Iron may help some restless legs. A new pillow does not fix all three.
What actually works
CBT-I is the strongest non-drug option for chronic insomnia. It is not just "think positively". It usually combines stimulus control, sleep restriction, cognitive work, relaxation, circadian timing and relapse prevention. An American Academy of Sleep Medicine guideline gives strong support for multicomponent CBT-I in adults with chronic insomnia.2
The American College of Physicians guideline also recommends CBT-I as the initial treatment for chronic insomnia in adults, with medication decisions made through shared decision-making if CBT-I alone is not enough.3 That matters because many people are offered tablets before they are offered the intervention with the best long-term evidence.
Stimulus control is simple but hard. Use the bed for sleep and sex, get out of bed if you are awake and frustrated, return when sleepy, wake at the same time, and stop training the brain to associate bed with struggle. Sleep restriction is also powerful but should be done carefully: it temporarily limits time in bed to increase sleep pressure, then expands it as sleep becomes more efficient.
Sleep hygiene is not useless, but it is often oversold. A cool dark room, less caffeine, less alcohol, regular exercise and a wind-down routine are sensible foundations. They usually fail when insomnia has become conditioned: bed equals alertness, clock-watching and effort. That is where CBT-I is different. It changes the learned relationship with sleep, not just the bedroom setup.
Light timing works when the body clock is the issue. Bright outdoor light soon after waking helps anchor circadian rhythm. Dimmer evenings and consistent wake times help more than arguing with yourself at midnight. Caffeine timing matters too. Some people need to stop by midday, not just after dinner.
| Intervention | Best for | Main limitation |
|---|---|---|
| CBT-I | Chronic insomnia, conditioned sleeplessness, sleep anxiety. | Requires effort and can feel worse before it feels better. |
| Consistent wake time | Body-clock instability and irregular sleep. | Hard with shift work, parenting or pain. |
| Morning outdoor light | Delayed rhythm, low morning alertness, winter drift. | Needs consistency and enough brightness. |
| Reducing alcohol | Night waking, snoring, reflux, fragmented sleep. | Benefits can be missed if caffeine and schedule remain chaotic. |
| Melatonin | Specific circadian or short-term indications, not a universal sedative. | Timing and indication matter. More is not always better. |
| Sleep tracker | Pattern spotting and routine awareness. | Can worsen sleep anxiety and does not diagnose sleep stages perfectly. |
| Expensive mattress, sprays or gadgets | Comfort problems only. | Often does not address insomnia, apnoea, pain, alcohol, caffeine or stress. |
What is often wasted money
Blue-light glasses, magnesium, glycine, ashwagandha, CBD, weighted blankets, mouth tape, cooling pads and premium mattresses can all help some people in specific circumstances. The problem is overclaiming. If you drink wine at 10pm, wake at different times, have untreated apnoea and lie in bed worrying for two hours, a supplement stack is unlikely to be the main fix.
The AASM pharmacological guideline reviewed insomnia medicines and found that benefits and risks vary by drug, with some commonly used options having weak or insufficient evidence for chronic insomnia.4 That does not mean no medicine ever helps. It means the plan should be diagnosis-led, time-limited where appropriate, and reviewed.
Sleep trackers can create orthosomnia: a preoccupation with perfect sleep data that makes sleep worse. Use the device to identify patterns such as late caffeine, irregular wake time or alcohol-related waking. Do not let it overrule how you function or turn every night into a performance review.
Medical causes not to miss
Sleep apnoea is the big one. NHS guidance lists symptoms such as breathing stopping and starting during sleep, gasping, snorting or choking noises, loud snoring, waking often, daytime tiredness, difficulty concentrating, mood changes and morning headaches.5 People with possible sleep apnoea need assessment, not just sleep hygiene.
Restless legs, iron deficiency, thyroid disease, chronic pain, reflux, nocturia, asthma, menopause symptoms, ADHD medicines, antidepressants, steroids, decongestants and alcohol can also fragment sleep. If sleep suddenly worsens with weight loss, night sweats, severe depression, mania symptoms, chest pain or breathlessness, get medical advice.
Safety point: seek urgent help for suicidal thoughts, mania, severe confusion, chest pain, severe breathlessness, or falling asleep while driving. For immediate danger call 999. For urgent mental-health support in England, NHS 111 can direct you to local crisis help.
A practical sleep reset
Start with two weeks of data. Then choose one primary target. If you cannot fall asleep, use CBT-I principles and stimulus control. If you wake gasping, screen for apnoea. If you wake hot, consider perimenopause or menopause. If you wake to pee, review evening fluids, caffeine, alcohol, diabetes risk, prostate symptoms or bladder issues. If pain wakes you, fix the pain plan.
Keep the basics boring: same wake time, outdoor morning light, caffeine cutoff, wind-down routine, cool dark room, no alcohol as a sleep aid, and bed reserved for sleep. These do not cure every sleep disorder, but they reduce noise so the real problem becomes clearer.
Measure progress by daytime function, fewer long awakenings and less fear of bedtime, not by achieving a perfect sleep score every single night.
Use the health library to compare sleep apnoea, hormones, pain and metabolic causes. The insights section can help weigh supplement evidence, and the stack builder can help check sleep supplements against medicines.
What to ask your GP
Bring a two-week diary and describe the main pattern. If you need help structuring that appointment, Start here.
- Does my pattern fit insomnia, sleep apnoea, restless legs, circadian rhythm disorder, pain, menopause symptoms or medication effects?
- Should I be referred for CBT-I, sleep apnoea testing, blood tests, medication review or mental-health support?
- Are any of my medicines, alcohol, caffeine, supplements or work patterns worsening sleep?
- If a sleep medicine is suggested, what is the goal, duration, side-effect plan and stopping plan?
- Do I need urgent help because of severe daytime sleepiness, driving risk, suicidal thoughts, mania symptoms or breathing problems?
The highest-value sleep plan is not the one with the most products. It is the one that identifies the sleep disorder, changes the behaviour or physiology that maintains it, and avoids turning sleep into another source of performance anxiety.
References
- NHS, reviewed 2025. Insomnia. link
- Edinger JD, Arnedt JT, Bertisch SM, Carney CE, Harrington JJ, Lichstein KL, Sateia MJ, Troxel WM, Zhou ES, Kazmi U, Heald JL, Martin JL, 2021. Behavioral and psychological treatments for chronic insomnia disorder in adults: an American Academy of Sleep Medicine clinical practice guideline. Journal of Clinical Sleep Medicine. link
- Qaseem A, Kansagara D, Forciea MA, Cooke M, Denberg TD, Clinical Guidelines Committee of the American College of Physicians, 2016. Management of chronic insomnia disorder in adults: a clinical practice guideline from the American College of Physicians. Annals of Internal Medicine. link
- Sateia MJ, Buysse DJ, Krystal AD, Neubauer DN, Heald JL, 2017. Clinical practice guideline for the pharmacologic treatment of chronic insomnia in adults: an American Academy of Sleep Medicine clinical practice guideline. Journal of Clinical Sleep Medicine. link
- NHS, reviewed 2025. Sleep apnoea. link
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This article is educational and does not constitute medical advice, diagnosis, or a treatment recommendation. Medication uses described as “off-label” are not licensed for that purpose in the UK and should only be considered under qualified clinical supervision. Always speak to your GP, pharmacist, or a registered specialist before starting, stopping, or changing any treatment. If you have severe or alarm symptoms - unintentional weight loss, blood in your stool, difficulty swallowing, persistent vomiting, a fever, or severe pain - seek urgent medical care.