People come to the counter asking for something to help them sleep, and the honest answer is that the most effective interventions are not products. That is an unsatisfying thing for a pharmacy to say, so let us be specific about what the evidence actually shows.
What works best, and is free
Cognitive behavioural therapy for insomnia (CBT-I) outperforms every medication and every supplement in the trials, and its effects persist after treatment stops — which is not true of sedatives. Many public health services offer it without a GP referral, and there are well-validated self-guided programmes if yours does not. If you have had trouble sleeping for more than three weeks, this is the intervention with the best return on your effort.
Consistency of wake time matters more than consistency of bedtime. A fixed alarm seven days a week does more for sleep pressure than almost anything you can buy from us.
What has reasonable evidence
- Magnesium — modest but real effects on sleep quality in older adults and in people who are deficient. The glycinate form is best tolerated. Effects are small; expect a nudge, not a transformation.
- Melatonin — genuinely effective for circadian problems: shift work, jet lag, delayed sleep phase. In the UK it is prescription-only for good reason, and it is much less useful for ordinary insomnia than its reputation suggests.
- Light exposure — ten minutes of daylight within an hour of waking is one of the most reliable ways to shift a drifting body clock. It costs nothing.
What has weak evidence but we still stock
Valerian, passionflower and chamomile have small, inconsistent trials behind them. Some people find them genuinely helpful and we are not going to pretend otherwise. We stock them, we tell you the evidence is thin, and we let you decide.
Pillow sprays fall into a category of their own. There is little reason to think lavender crosses into the bloodstream in meaningful quantity from a mist. What a spray does well is act as a conditioned cue — if you only ever use it at bedtime, it becomes a signal your nervous system learns to read. That is a real mechanism, just not a pharmacological one.
When to stop reading and see someone
Please book a consultation with one of us, or see your GP, if you snore heavily and wake unrefreshed, if you fall asleep during the day without meaning to, or if low mood arrived alongside the sleeplessness. Sleep apnoea and depression are both common, both treatable, and neither is helped by anything on our shelves.
