Medically reviewed guide · Last updated: 23 June 2026 · Reading time: approx. 12 min

Sleeping pills: what really helps? The honest comparison

Anyone who sleeps badly often wishes for fast and uncomplicated help, and the shelves in pharmacy and drugstore are full of agents that promise exactly that. But between herbal drops, over-the-counter tablets and strong prescription-only sleeping aids lie worlds, above all with the dependence risk. This guide compares the most important groups honestly and neutrally, instead of advertising single products: over-the-counter agents, the Z-drugs such as zolpidem and the sleep hormone melatonin. It explains how they work, where their limits lie and why precisely the strongest agents are to be enjoyed with caution. Important beforehand: this guide does not replace medical advice and recommends no particular agent. Its goal is to place the topic honestly and above all to name clearly the often concealed dependence risk, so that a conscious decision together with practice or pharmacy becomes possible.

The over-the-counter agents: gentle but not harmless

Over the counter in the pharmacy there are above all three groups. The first are herbal sleeping aids with active ingredients such as valerian, hops and balm, available as capsules, drops, tinctures or teas. They are the mildest of the three groups and are valued by many people above all because they are considered natural and well tolerated. They work rather gently and sleep-inducing, that is, they take away some of the inner tension and ease the coming to rest, but do not let one fall asleep without one's own contribution. Their great advantage is that they do not make dependent and are well tolerated; their disadvantage is the weaker and individually different effect. For many people they are therefore a good first step with mild, occasional sleep problems, before stronger agents even come into question at all.

The second group are certain antihistamines such as diphenhydramine and doxylamine. They were originally developed against allergies but make tired as a side effect and are therefore used as over-the-counter sleeping aids. They too are not free of side effects: possible are dry mouth, visual disturbances, dizziness, headaches, constipation and the next day a persistent drowsiness that can increase the accident and fall risk. Precisely with older people this tiredness persisting on the following day is an important point, because it can clearly increase the risk of falls. For certain people, for example men with prostate problems, they are less suitable. In addition a habituation effect can set in, so that the effect fades. The third over-the-counter group is low-dosed melatonin, which is gone into more precisely further below. Important is therefore: over-the-counter sleeping aids too are real active ingredients with real side effects and not simply harmless falling-asleep helps that one can take without hesitation in any amount.

Z-drugs such as zolpidem: strongly effective but with a dependence risk

The Z-drugs are the most frequently prescribed prescription-only sleeping aids. Their name comes from the fact that the active ingredient names begin with the letter Z: zolpidem, zopiclone and zaleplon. They work via the so-called GABA system in a dampening way on the central nervous system and ease above all the falling asleep. Simply put, they lower the activity of the brain, which eases the transition into sleep. Zolpidem has a rather short duration of effect and is used above all for falling asleep, zopiclone works somewhat longer and can also help with sleeping through. A practical hint from the professional world is not to take such an agent anymore when one wakes up only late in the night, because otherwise it can have an after-effect into the day. Compared to the older benzodiazepines, the Z-drugs are often considered somewhat better tolerated, because they are broken down faster. Exactly for this reason they are today prescribed clearly more frequently than the classic benzodiazepines, which work similarly but are considered even more problematic with regard to dependence.

As effective as these agents are, so clear is their central disadvantage that in advertising likes and all too often gets lost: the risk of a dependence. Already after a few weeks of regular intake, habituation and dependence can arise, which is why Z-drugs should as a rule not be used longer than about two to four weeks at a stretch and only under medical supervision. In addition there are possible side effects such as a hangover effect the next day, drowsiness, dizziness, in rarer cases confusion, nightmares or even sleepwalking. Such phenomena can be not only unpleasant but also dangerous, for example when someone leaves the house in sleep without later remembering it. They are most sensible in an acute, burdening exceptional situation, in order to temporarily find back into the sleep rhythm, but not as a permanent solution. Exactly this point often gets lost in fast self-medication: a strong sleeping aid does not solve the sleep problem permanently but can with longer use become a problem itself.

Melatonin: the sleep hormone in view

Melatonin takes a special role, because it is not a classic synthetic sleeping aid but reproduces the body's own sleep hormone. Melatonin is formed in the body above all at night and controls the sleep-wake rhythm, that is the change of being awake and sleeping over the day. As a preparation it can be sensible above all when this rhythm has got out of step, for example with shift work or after flights across several time zones. With classic problems of falling and staying asleep without a rhythm disturbance, the benefit is, on the other hand, limited. Melatonin is therefore no universal sleeping aid that helps with every kind of bad sleep but a targeted agent for very specific situations in which the inner clock has got out of step. The timing of the intake also plays a role here and should fit the respective situation.

In Germany the legal situation is somewhat confusing: low-dosed melatonin products are available over the counter, partly even as food supplements in the drugstore or supermarket, while higher-dosed preparations are prescription only. Some experts see this easy availability of low dosages critically. Because even a freely available product from the supermarket remains an effective substance whose intake one should not handle completely thoughtlessly. The great advantage of melatonin is that it demonstrably does not make dependent. It is, however, no harmless cure-all without limits: it can have interactions with other medicines, for example with certain sleeping aids, with agents against depression or with hormonal contraceptives. Therefore melatonin too should be used specifically and in case of doubt after consultation. Precisely because low-dosed products are so easily available, it is worth checking beforehand whether one's own sleep disorder even fits with what melatonin sensibly works against.

What really helps lastingly

As different as the agents are, they have one thing in common: they fight the symptom, not the cause. That is perhaps the most important and at the same time most uncomfortable insight of this comparison, because it contradicts the hope for the one fast pill. Exactly for this reason sleeping aids across all groups are considered short-term help and not a permanent solution. Anyone who permanently sleeps badly and reaches for the tablet again and again runs the danger of covering the actual problem, while it remains in the background or even strengthens. For persistent sleep disorders, a causal, frequently medicine-free treatment is the most lasting way. In first place is the so-called sleep hygiene: fixed sleep and getting-up times, a calm evening routine, the avoidance of screens and caffeine in the evening, a dark, cool and quiet bedroom as well as regular exercise during the day. These measures sound unspectacular but are in sum often more effective and above all more lasting than any medicine, because they start at the actual habits.

With longer-lasting, chronic sleep disorders, a special form of behavioural therapy, the cognitive behavioural therapy for sleep disorders, is considered particularly effective and lasting. It does not start at a single night but changes long-term the handling of sleep and the underlying habits. Those affected learn for example to connect the bed again with sleep instead of with brooding, to take out the pressure and to handle nightly lying awake differently. Medicines can support short-term in acute, burdening phases, for example after an incisive event, but do not replace the search for the actual cause. If sleep problems persist longer, burden strongly or go along with other complaints, the way to the medical practice is the right one, in order to clarify the cause and find a fitting solution. Behind permanent bad sleep, namely, other illnesses can also be hidden, for example problems with breathing during sleep, hormonal causes or mental burdens that need a treatment of their own.

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In sum, there is not the one best sleeping aid but various agents with very different strengths and risks. Over-the-counter herbal agents and antihistamines can help with occasional, mild sleep problems, while zolpidem and other Z-drugs are strongly effective but, because of the dependence risk, only sensible short-term. Melatonin helps above all with a disturbed sleep-wake rhythm. With persistent sleep disorders, the most honest answer is that no agent replaces the search for the cause and a good sleep hygiene. Anyone who understands this can use sleeping aids consciously and safely. Instead of being guided by advertising promises, it helps to assess one's own situation honestly: is it about a one-time, acute problem or about a longer-lasting sleep disorder that deserves a more thorough clarification?