Several options can help you fall asleep, ranging from supplements you can buy today to prescription medications for persistent insomnia. The right choice depends on whether you’re dealing with the occasional rough night or a pattern that’s lasted weeks. Here’s what actually works, what the tradeoffs are, and what to try first.
Melatonin: The Most Common Starting Point
Melatonin is a hormone your brain already produces to signal that it’s time for sleep. Taking it as a supplement essentially gives that signal a boost. For short-term sleep problems, a 2mg slow-release tablet taken 1 to 2 hours before bedtime is the standard dose recommended by the NHS. For ongoing insomnia, the same 2mg dose taken 30 minutes to 1 hour before bed can be gradually increased up to 10mg if needed.
Timing matters more than most people realize. Taking melatonin right as you climb into bed won’t do much. Your body needs that 30-minute to 2-hour window to absorb it and shift into sleep mode. If you’re using it for jet lag, a 3mg tablet at your normal bedtime (no earlier than 8 p.m. and no later than 4 a.m.) for up to 5 days helps reset your internal clock.
Melatonin works best for people whose sleep timing is off, like shift workers or travelers. If your problem is staying asleep rather than falling asleep, it may not be enough on its own.
Magnesium Supplements
Magnesium helps balance the chemical messengers in your nervous system, calming the excitatory signals that keep your brain alert. It also plays a direct role in your body’s production of melatonin, so low magnesium levels can quietly undermine your sleep without you knowing why.
A dose of 250 to 500 milligrams taken at bedtime is what sleep-focused practitioners typically recommend, according to Mayo Clinic. Look for magnesium glycinate specifically, as it’s better absorbed and less likely to cause digestive issues than other forms like magnesium oxide. Many people notice a difference within the first week, though results vary. Magnesium is generally well tolerated and doubles as support for muscle relaxation, which can help if physical tension keeps you awake.
Over-the-Counter Antihistamines
The active ingredients in most OTC sleep aids are diphenhydramine (the ingredient in Benadryl) and doxylamine (found in Unisom SleepTabs). Both work by blocking a brain chemical called histamine that promotes wakefulness. They’ll make you drowsy, and they’re widely available without a prescription.
The catch is next-day grogginess. Morning sluggishness is common with both, and it can affect your driving and concentration well into the following day. These drugs also lose their effectiveness quickly. Your body adjusts to antihistamines, so they stop working as well after just a few nights of regular use. They’re reasonable for the occasional sleepless night before a big event, but they’re not a good long-term strategy.
Herbal and Food-Based Options
Valerian root has the most research behind it among herbal sleep aids. Multiple studies suggest it can reduce the time it takes to fall asleep and improve sleep quality, though the evidence isn’t consistent across all trials. One important detail: valerian typically needs two or more weeks of regular use before you notice a difference. It’s not a one-night fix.
Tart cherry juice is a less obvious option that has gained attention because Montmorency tart cherries contain naturally occurring melatonin, with more than six times the amount found in other tart cherry varieties. A small study found it improved both sleep duration and quality in people with insomnia. Drinking 8 ounces in the morning and 8 ounces in the evening is the approach most commonly studied. It’s mild, and it won’t knock you out, but for people who prefer food-based approaches it’s worth trying.
Prescription Sleep Medications
If supplements and OTC options haven’t helped, prescription medications are the next tier. A newer class of drugs called orexin receptor antagonists works by blocking the brain signals that keep you awake, rather than sedating you the way older sleep drugs do. Three are currently FDA-approved: suvorexant, lemborexant, and daridorexant.
These newer medications have several advantages over the older options you may have heard of. They don’t appear to cause addiction or tolerance, meaning they keep working at the same dose over time. They’re well tolerated in older adults, cause limited cognitive impairment, and one study found that lemborexant didn’t affect next-day driving performance. In contrast, older sedatives like zopiclone caused measurably worse driving the morning after, with significantly more lane weaving compared to a placebo.
Older prescription options like benzodiazepines and similar drugs (often called Z-drugs) are still prescribed but come with serious downsides. Tolerance can develop in as little as 3 to 14 days of continuous use, and the sleep-promoting effects often wear off after a few weeks. When you stop taking them, an estimated 20 to 50 percent of patients experience withdrawal symptoms, which can include rebound insomnia that’s worse than what you started with.
What Sleep Experts Recommend First
The American Academy of Sleep Medicine recommends cognitive behavioral therapy for insomnia (CBT-I) as the first-line treatment for chronic sleep problems. This isn’t talk therapy in the traditional sense. It’s a structured program, often just 4 to 8 sessions, that retrains the habits and thought patterns keeping you awake. It works by adjusting your sleep schedule, reducing time spent lying in bed awake, and addressing the anxiety loop that forms when you start dreading bedtime.
Medications are recommended mainly for people who can’t access CBT-I, who still have symptoms after completing it, or who need temporary help while working through it. The academy doesn’t recommend any single drug over another because there isn’t enough comparative research to rank them. This means the choice between medications is typically tailored to your specific symptoms, whether that’s trouble falling asleep, staying asleep, or both.
Safety Considerations Worth Knowing
Mixing any sleep aid with alcohol is genuinely dangerous. Alcohol is already a sedative, and combining it with sleep medications intensifies drowsiness, impairs coordination, and can slow breathing to dangerous levels. This applies to everything from diphenhydramine to prescription sedatives to herbal remedies like kava. The risk of falls and overdose increases significantly, especially for older adults.
Even without alcohol in the picture, layering multiple sleep aids together (say, melatonin plus an antihistamine plus valerian) isn’t safer just because each one is mild on its own. The sedating effects compound, and next-day impairment becomes more likely. Start with one approach, give it a fair trial of at least a week or two, and adjust from there rather than stacking several at once.