Home / Journal / Natural Aids
Tart Cherry Juice for Sleep: How Much and When to Drink It
Of all the things in the natural sleep aisle, tart cherry juice is the only one that's simply food. Dark red, mouth-puckeringly sour, pressed from Montmorency cherries that ripen in a few short midsummer weeks. There's something fitting about a sleep remedy that comes from an orchard rather than a lab, and something surprising about how seriously the research has taken it.
Why a cherry, of all things
Montmorency tart cherries carry a small amount of naturally occurring melatonin, the hormone your body uses to announce the night, along with tryptophan and a deep store of anthocyanins, the pigments that make the juice so dark. The melatonin dose in a glass is a whisper next to even a low-dose supplement. The interesting question has been whether the whisper, delivered inside a whole food, does anything.
The trials say: something, modestly, and more than you'd guess.
What the research actually found
Three studies do most of the work here, and they're worth knowing plainly:
- The concentrate trial. Twenty healthy adults drank 30 ml of tart cherry concentrate twice daily for a week. Compared with placebo, they slept about 34 minutes longer with 5 to 6 percent better sleep efficiency, and the melatonin traces in their urine rose by roughly 17 percent, evidence the cherries were genuinely nudging the system.
- The insomnia pilot. Eight adults over 50 with chronic insomnia drank 240 ml of juice twice daily for two weeks and slept 84 minutes longer than on placebo. That's a striking number wearing a very small study. Eight people is a pilot, not a verdict.
- The earlier pilot. Older adults with insomnia saw modest improvements on the same twice-daily pattern, smaller than the later study but pointing the same way.
A 2025 systematic review gathered the field and found five of six studies reporting improved sleep quality. The consistent caveat: nearly all of them are small. Tart cherry's evidence is a chorus of quiet voices rather than one loud one, which happens to suit it.
How much, and when
The honest answer is to copy the trials rather than improvise:
- Juice: 8 oz (240 ml) twice daily: once in the morning or afternoon, once about an hour or two before bed.
- Concentrate: 30 ml (about two tablespoons) twice daily, diluted in water, on the same schedule.
- What to buy: 100 percent tart or Montmorency cherry juice, not "cherry blend" or sweetened cocktails, which are mostly apple juice wearing a costume. Concentrate is usually the better value per serving.
- Runway: the trials ran one to two weeks. Give it that long before judging.
The fine print
Tart cherry juice is food, and its cautions are food-sized. It carries a real load of natural sugar, so if you manage blood sugar, count it like any other juice and ask your pharmacist or doctor where it fits. The evening serving is also, unavoidably, a glass of liquid before bed; drink it on the early side of the window if 2 AM bathroom trips are already part of your story. And if you'd rather skip the sugar entirely, tart cherry capsules exist, though the sleep trials mostly used the juice and concentrate.
FAQ
Can I just eat cherries instead?
Fresh Montmorency cherries are hard to find outside a brief season, and the trials used juice and concentrate for exactly that reason. Sweet eating cherries are a different fruit with a different profile.
Does it work the first night?
Unlikely. The measured effects showed up over a week or two of twice-daily use. This is a rhythm you join, not a switch you flip.
How does it compare to a melatonin supplement?
Different tools. A melatonin tablet delivers a precise dose for a circadian problem like jet lag. Tart cherry delivers a small dose inside a whole food, with effects that look gentler and broader in the trials. If your sleep trouble is mild and you'd rather pour something than swallow something, the cherry is the more pleasant experiment.
The bottom line
Two glasses a day, one of them as the evening settles, for two weeks: that's the whole protocol, and it comes with anthocyanins and an orchard's worth of pleasantness that no capsule offers. The studies are small and honest about it. But there's a certain rightness to a remedy that asks you to drink something dark and sour and patient while the light goes, and lets the night do the arithmetic.
Sources
The trial findings and dosing on this page trace back to these.
- Howatson G, Bell PG, Tallent J, Middleton B, McHugh MP, Ellis J. "Effect of tart cherry juice (Prunus cerasus) on melatonin levels and enhanced sleep quality." European Journal of Nutrition 51(8):909–916 (2012). Read it
- Barforoush et al. "The Effect of Tart Cherry on Sleep Quality and Sleep Disorders: A Systematic Review." Food Science & Nutrition (2025). Read it
- National Capital Poison Center. "Should you use tart cherry juice for sleep?" Read it
Educational only, not medical advice. If sleep loss is affecting your health or safety, speak with a clinician.
