Sleepmaxxing: A Sceptical Look

The trend, rated hack by hack

• Consistent sleep and wake times — works. The strongest, cheapest lever there is; it anchors your body clock more reliably than anything you can buy.
• Morning daylight exposure — works. A short burst of natural light soon after waking helps set the circadian rhythm for the following night.
• Cool, dark, quiet room — works. See cooling for deep sleep — temperature is one of the better-evidenced levers going.
• Wind-down routine, less late screen light — works. Less about blue light specifically and more about winding activity and stimulation down before bed.
• Weighted blankets — mixed. Some evidence for anxiety-related sleeplessness; not transformative for an otherwise good sleeper.
• White noise — mixed. Helpful if your problem is a noisy environment; does nothing if your room is already quiet.
• Magnesium and sleep supplements — weak. Rarely outperforms good habits in trials, and quality varies hugely between products.
• Blue-light-blocking glasses — weak. Evidence for sleep benefit specifically is inconsistent; cutting stimulating screen use matters more than the tint of the lens.
• Red-light therapy lamps — weak. Heavily marketed, with little independent human evidence for sleep specifically.
• Nasal strips and dilators — situational. Can ease mild congestion-related snoring; not a fix for sleep apnoea (see below).
• Mouth taping and unregulated melatonin — skip, or worse. Covered next: these two deserve more than scepticism.

Treat any bold claim — whether from a gadget or a wellness trend — the same way: ask for the study.

Two hacks that can actively backfire

Mouth taping is the standout: there is little evidence it improves sleep in healthy people, and for anyone with undiagnosed sleep apnoea — which is common and mostly undiagnosed — restricting mouth breathing at night is a genuinely bad idea. If you snore heavily or wake unrefreshed, get assessed before taping anything. Melatonin is similarly misunderstood: it is a timing signal, not a sedative, and in the UK it is prescription-only for good reason — the high doses sold abroad and online far exceed what the body uses. Aggressive evening routines such as ice baths or hour-long protocols belong on this list too: they can leave you too alert, or too anxious about executing them, to actually sleep.

Five questions before you buy anything

• What is the mechanism? If the seller cannot explain how it works in one sentence, walk away.
• Is there human evidence? A study in people, not mice, marketing surveys or "clinically inspired" wording.
• Would a free habit do the same? Most gadgets are a paid version of a consistent schedule, a dark room or morning light.
• What does it cost per year? Subscriptions and consumables quietly outgrow a decent blackout blind.
• Is it making me calmer or more anxious about sleep? Anything that adds worry is working against you, whatever its data says.

When optimising backfires

Chasing perfect sleep can create anxiety about sleep itself — clinicians even have a name for it, "orthosomnia", where obsessing over your tracker worsens rest. If you are lying awake worrying about your sleep score, that is the problem to fix first. For grounded guidance, the Sleep Foundation and NHS insomnia advice favour habits over gadgets — and so should you.