Tart Cherry Juice for Sleep: What the Studies Actually Show
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Tart cherry juice for sleep has gone from a niche sports drink to a regular in bedtime routines online. The claim is that sour Montmorency cherries contain melatonin and other compounds that help you fall asleep and stay asleep. This guide covers what tart cherry juice is, what the studies actually found, their limits, how people use it, safety, and what to try first if your sleep is poor.
The short answer: a handful of small studies suggest tart cherry juice may modestly improve sleep time and quality for some people, and a few found higher melatonin levels after drinking it. But the trials are small, short and varied, one key study was industry funded, and a 2024 trial of tart cherry capsules found no effect on sleep. It's a reasonable thing to try if you like the taste, not a treatment for insomnia. Check with your GP or pharmacist if you take regular medicines or have diabetes.
What is tart cherry juice?
Tart cherries are sour cherries, usually the Montmorency variety, rather than the sweet cherries you eat fresh in summer. The juice is sold as a concentrate or ready-to-drink, and the powder is sold in capsules. Interest in sleep comes from two ideas: tart cherries are thought to contain some melatonin, the hormone your body releases in the evening, and they contain compounds that researchers think may affect how your body makes melatonin and handles inflammation. For background on melatonin itself, see melatonin in Australia.
What the studies found
A 2025 systematic review gathered seven interventional studies of tart cherry and sleep. Five of the six clinical studies reported significant improvements in sleep quality after tart cherry juice or a supplement, and three found higher melatonin levels. The authors concluded the evidence is still limited and heterogeneous, with small samples, short trials and big differences in dose and design (source).
The studies most often quoted:
- Howatson and colleagues (2012): 20 adults drank tart cherry juice for seven days. Sleep time, sleep efficiency and time in bed increased, and urinary melatonin rose.
- Pigeon and colleagues (2010): 15 older adults with insomnia showed improvements on sleep measures including insomnia severity.
- Losso and colleagues (2018): a pilot crossover trial in older adults with insomnia. Eleven people were randomised, three were excluded because they had sleep apnoea, and eight finished. They drank 240 ml of tart cherry juice in the morning and one to two hours before bed for two weeks. Sleep time measured in a sleep lab rose by 84 minutes. The trial was supported by the Cherry Marketing Institute, which the authors say had no role in its design (source).
That 84-minute figure travels widely online. Remember it came from eight people.
The study that found nothing
A 2024 randomised crossover trial gave 34 adults with overweight or obesity and sleep problems 500 mg of tart cherry powder in two capsules an hour before bed for 14 days. There were no significant effects on any of the sleep measures, and no change in inflammation markers. The authors suggested future trials test higher doses (source).
So capsules at that dose didn't help in that group, and juice studies used far more cherry. It's hard to compare across products.
Evidence at a glance
| Question | What we know |
|---|---|
| Does it raise melatonin? | Three studies in the 2025 review found it did |
| Does it help sleep? | Small trials say modestly, for some people |
| Does it help insomnia? | Two small studies in older adults found improvements |
| Do capsules work? | One 2024 trial at 500 mg found no effect |
| How strong is the evidence? | Limited: small, short, varied studies |
How people use it
If you want to give it a go:
- Pick a form you'll actually drink. The best-known positive studies used juice.
- Take it at a consistent time. In the Losso pilot, juice was taken morning and one to two hours before bed.
- Read the label. Juice contains natural sugars and adds kilojoules, which matters if you're watching your diet or have diabetes.
- Trial it for two weeks and note how long it takes to fall asleep and how you feel in the morning. Keep everything else the same.
- Mind the timing of drinks. A big glass close to bed can mean a trip to the toilet at 3am. See waking up to pee at night.
Tart cherry juice is also a common base for the "sleepy girl mocktail"; see sleepy girl mocktail for that trend.
Safety and medicines
Tart cherry juice is a food, and most people can drink it. Still, Better Health Channel notes that herbal medicines and supplements may interact with over-the-counter or prescription medicines, and that "natural" doesn't automatically mean safe (source). If you take regular medicines, are pregnant or have diabetes or kidney problems, check with your GP or pharmacist first, especially before using concentrated capsules.
What to try first
Tart cherry juice is at best a small add-on. These matter more:
- A fixed wake-up time, even on weekends. See why a fixed wake-up time works.
- Caffeine cut-off by early afternoon. See caffeine and sleep.
- Wind-down routine without screens in bed.
- CBT for insomnia if poor sleep has dragged on for months. See insomnia: what helps.
If you've had trouble sleeping most nights for months, or you snore loudly and wake unrefreshed, see your GP. This guide is general information, not medical advice.
Where the Sovune Nudge fits
We make the Sovune Nudge, a silent alarm wristband, so we're not neutral. It won't help you fall asleep, but a calm, consistent wake-up time is one of the habits that does most for sleep, and the Nudge is built for that.
- Wakes you with vibration on your wrist, starting as a gentle tap and building through three intensity levels.
- Silent. No speaker and no sound, so you're not jolted awake and nobody else is either.
- Set on the band itself. No app, no phone, so your phone can stay out of the bedroom.
- Up to 14 days of nightly use per charge.
It comes with a 30-day money-back guarantee.
Quick answers
Does tart cherry juice really help you sleep? A few small studies suggest a modest benefit for some people, but the evidence is limited and one capsule trial found no effect.
How much tart cherry juice should I drink? There's no agreed dose. The best-known pilot used 240 ml twice a day for two weeks, but products vary widely.
When should I drink it? Studies used morning and evening doses, with the evening dose one to two hours before bed. Avoid a large drink right before lights out.
Is tart cherry juice the same as melatonin? No. It may contain a little melatonin along with other compounds, but it isn't a melatonin medicine.
For every type of silent alarm compared, see our complete guide to vibrating alarms in Australia.