Dietitians All Agree on This One Bedtime Drink for Better Sleep

The Surprising Nightcap That Could Change How You Sleep

Millions of people lie awake staring at the ceiling every night, cycling through every trick they've ever heard — herbal teas, warm milk, melatonin gummies. But when registered dietitians were asked to name the single best drink to have before bed, they didn't hesitate. Of all the options available, dietitians keep coming back to tart cherry juice as their go-to drink for better sleep. It's not a wellness gimmick — the science behind it is surprisingly solid.

It's normal to struggle with sleep — about one in six Americans have trouble falling or staying asleep most nights. That's a staggering number of people reaching for solutions that may or may not work. Tart cherry juice, it turns out, works through multiple biological pathways at once, which is exactly why nutrition experts keep recommending it.

What Makes Tart Cherry Juice So Effective

Unlike most sleep supplements, which isolate a single compound, tart cherries deliver a natural mix of melatonin, tryptophan, and anti-inflammatory anthocyanins in one food source. That combination is key. The science behind these effects points to two key compounds: melatonin found naturally in tart cherries, and tryptophan, an amino acid that helps your body produce melatonin on its own.

But the story goes deeper than just melatonin. Tart cherry juice also contains anthocyanins — natural anti-inflammatory compounds that give the cherries their deep red color — which reduce inflammation in the body, and since inflammation disrupts sleep through multiple pathways, this adds a third mechanism on top of the melatonin and tryptophan effects. Tart cherries also contain magnesium, a micronutrient that regulates the production of cortisol, a stress hormone. In other words, this humble juice is doing a lot of heavy lifting while you wind down.

What the Research Actually Shows

Research suggests that drinking tart cherry juice regularly can increase total sleep time and reduce the time it takes to fall asleep, especially in adults with mild insomnia. One landmark study put real numbers to those claims. A 2012 study with 20 participants found 34 extra minutes of sleep per night and a 5–6% improvement in sleep efficiency — the percentage of time in bed actually spent sleeping.

Researchers at Louisiana State University presented data showing that drinking Montmorency tart cherry juice just twice a day for two weeks helped increase total sleep time by nearly 90 minutes among older adults with insomnia. Greater than 75% of participants reported a positive response, with a significantly reduced amount of time to initiate sleep and improved ability to maintain sleep. Those are meaningful results for people who have been struggling for years.

How to Make It Part of Your Routine

It's easy to make tart cherry juice part of your nighttime routine — drink it plain, mix it into a "sleepy girl mocktail," or sip it slowly as a relaxing ritual — just make sure to choose 100% Montmorency tart cherry juice with no added sugars. Timing matters, too. Drinking tart cherry juice alongside a small snack — like whole-grain toast with almond butter — may help support tryptophan absorption and promote relaxation, and drinking it one to two hours before bed will help limit middle-of-the-night bathroom trips.

The key is consistency: drinking it nightly may be more effective than an occasional sip. Some people may experience stomach upset from the sugar sorbitol, and tart cherry juice can interact with medications like blood thinners, so consult your doctor first. And of course, no single drink is a complete fix on its own. Tart cherry juice may help you fall asleep faster and improve sleep quality, but it's not a cure-all — if you're having difficulty sleeping, it's worth assessing your broader habits, since a consistent sleep schedule and a nighttime routine can help signal to your body that it's time for sleep. Think of the juice as a smart addition to a wider strategy, not a magic bullet — just one that happens to be backed by real science.