Tart Cherry for Sleep: Juice, Extract and What the Studies Show

Tart cherry for sleep rests on a few small human trials, all using tart cherry juice, that measured melatonin levels, total sleep time and sleep efficiency over one to two weeks. None of them tested a powder or an extract. Here is what each study measured, how juice, powder and extract differ, and how much was used.

Key Takeaways

• Tart cherry is the sour cherry, Prunus cerasus. Montmorency is the variety named on most labels.
• In 20 healthy adults, 7 days of tart cherry juice concentrate raised urinary melatonin and increased total sleep time and sleep efficiency versus placebo.
• Two small pilot trials in older adults with poor sleep used tart cherry juice for 2 weeks. One found less waking after sleep onset than placebo; the other, with 8 completers, recorded 84 more minutes of sleep in a sleep lab.
• The trials used juice, so their amounts do not translate directly to powder or extract.
• Tart cherries naturally contain trace melatonin, so a tart cherry product with none added is labeled no added melatonin.

What Is Tart Cherry?

Tart cherry, or sour cherry, is Prunus cerasus, a different species from the sweet cherries (Prunus avium) sold fresh. Tart cherries are bright red, sharp tasting and mostly sold frozen, dried, juiced or as concentrate. Montmorency is the variety named on most labels.

Researchers study tart cherry for sleep for two reasons: the fruit contains trace natural melatonin, the hormone your body releases in the evening, and it is rich in polyphenols such as anthocyanins (the red pigments) and procyanidins. One trial looked at a procyanidin in tart cherry juice and its effect on an enzyme that breaks down tryptophan, the amino acid the body uses to make serotonin and melatonin (Losso et al., 2018).

A 2025 systematic review of seven intervention studies reached a similar view: three reported better sleep measures and three reported higher melatonin levels, but doses, durations and the people studied differed widely (Barforoush et al., 2025).

What the Tart Cherry Sleep Studies Measured

Three human trials come up most often. All were placebo controlled crossover studies, so each person tried both the cherry drink and a placebo drink, and all used juice.

Howatson 2012: melatonin and sleep in healthy adults

Twenty healthy adults drank tart cherry juice concentrate or a placebo drink for 7 days in a double blind crossover design. Sleep was measured with wrist actigraphy and questionnaires, and melatonin through a urine marker (6-sulfatoxymelatonin) collected over 48 hours. With the cherry juice, total urinary melatonin was significantly higher, and time in bed, total sleep time and sleep efficiency all increased compared with placebo. The timing of the melatonin rhythm did not shift (Howatson et al., 2012).

Pigeon 2010: older adults with chronic poor sleep

This pilot study enrolled 15 otherwise healthy older adults with chronic insomnia. Each drank a tart cherry juice blend and a placebo drink for 2 weeks apiece. Sleep diaries showed less time awake after first falling asleep with the cherry drink than with placebo. Time to fall asleep, total sleep time and sleep efficiency were not significantly different from placebo. The authors called the effects modest (Pigeon et al., 2010).

Losso 2018: sleep lab testing in adults over 50

Eleven adults over 50 with insomnia were randomized; three were excluded and referred because they had sleep apnea, leaving 8 who finished. They drank 240 mL of tart cherry juice twice a day (480 mL a day) for 2 weeks, and a placebo for 2 weeks. Polysomnography (a sleep lab recording) showed 84 more minutes of sleep with the cherry juice, and sleep efficiency improved on one questionnaire, while the other questionnaires showed no significant differences. Blood tests showed a lower kynurenine to tryptophan ratio, which the authors linked to procyanidin B-2 in the juice (Losso et al., 2018).

These are small studies of 8 to 20 people lasting one to two weeks. They describe what researchers measured with juice, not what every tart cherry product will do.

Tart cherry has also been studied for exercise recovery; see tart cherry juice benefits for those trials.

Does Tart Cherry Contain Melatonin?

Yes, in trace amounts. Tart cherries are one of several foods with naturally occurring melatonin (see our guide to foods with melatonin). Researchers have also looked at tart cherry's other compounds, such as the procyanidin B-2 studied in the Losso trial, as another possible way tart cherry juice relates to sleep.

Because of that trace melatonin, an accurate label on a tart cherry product with none added says no added melatonin, rather than claiming it contains none. For the tablet side, our complete guide to melatonin and our melatonin ingredient page cover dosage and safety; our roundup of sleep supplements without melatonin covers the other side. For a direct comparison with a measured melatonin dose, see melatonin vs tart cherry.

Tart Cherry Juice vs Powder vs Extract

Tart cherry comes in three main forms. Same fruit, but not interchangeable gram for gram.

Form	What it is	Sugar	Convenience
Juice or concentrate	Pressed fruit juice, sometimes concentrated and diluted with water	Natural fruit sugar in every glass; some brands add more	Needs refrigeration once opened; the Losso trial used two 240 mL servings a day
Powder	Dried tart cherry fruit ground into a powder	Natural fruit sugar, but a serving of a few grams holds far less than a glass of juice	Shelf stable; mixes into water or a smoothie
Extract	Concentrated fruit compounds in a small amount of material	Very little, given the small serving	Small serving size; labels vary in what, if anything, the extract is standardized to

Anthocyanin content varies with variety, harvest and processing, so a label that lists a polyphenol or anthocyanin amount tells you more than the word extract alone.

Tart Cherry Extract and Capsules: What Studies Show

Tart cherry extract and powder capsules pack the fruit into a small daily serving with very little sugar. The sleep trials above used juice, while the best-known capsule studies looked at exercise recovery, using a powdered Montmorency tart cherry supplement at 480 mg a day for 10 days:

• Muscle soreness after lifting. In 23 resistance-trained men, the tart cherry group reported less muscle soreness in the days after an intense leg workout than the placebo group (Levers et al., 2015).
• Endurance performance. In 27 trained runners and triathletes, the tart cherry group averaged 13 percent faster half-marathon finish times and showed smaller rises in several markers of muscle breakdown than the placebo group (Levers et al., 2016).

When you compare tart cherry extract products, look for the variety (Montmorency is the most studied), the amount per serving, and an anthocyanin or polyphenol amount on the label. Extract servings carry far less fruit sugar than juice. If you take medication, ask a healthcare provider before starting any new supplement.

How Much Tart Cherry Was Used in the Studies?

The clearest dose in the published abstracts comes from the Losso trial: 240 mL of tart cherry juice twice a day, or 480 mL daily, which is about two 8 oz glasses (Losso et al., 2018). The Howatson trial used a daily serving of tart cherry juice concentrate for 7 days, and the Pigeon trial used a tart cherry juice blend for 2 weeks.

Our Melatonin-Free Sleep Powder uses tart cherry powder and tart cherry extract. That is a different form from the juice in these trials, and we do not claim it equals any juice serving. The studies did not test powder or extract, so they are background on what researchers measured with juice, not results for our formula. In our powder, tart cherry sits alongside glycine, magnesium, myo-inositol and apigenin in a formula built to support restful sleep.

When to Take Tart Cherry for Sleep

In the trials, people took tart cherry daily for one to two weeks, and the Losso trial split it into two servings. The abstracts do not point to a single best time; most people take tart cherry in the evening. Our Sleep Powder is taken as 1 scoop in water, 30 to 60 minutes before bed.

Pair it with steady habits: a consistent bedtime, dim light in the last hour and a cool bedroom. Our hub on sleep health and why quality rest matters and our guide on how to fall asleep fast cover the routine side, and the sleepy girl mocktail guide shows a popular way people mix tart cherry into an evening drink. For pairing tart cherry with magnesium at night, see our guide to tart cherry and magnesium.

Tart Cherry Side Effects and Safety

Tart cherry is a fruit, so the practical tradeoffs are mostly about form. Two glasses of juice a day, as in the Losso trial, adds natural fruit sugar and calories, which matters if you watch your sugar intake. Powder and extract servings are measured in grams and carry far less.

Before using our Melatonin-Free Sleep Powder:

• Not for pregnant or nursing women or anyone under 18.
• Ask a healthcare provider before use if you take medication, especially blood thinners such as warfarin, sedatives or prescription sleep medicines.
• May cause drowsiness. Avoid with alcohol.
• Avoid if you are allergic to chamomile, ragweed, chrysanthemums, marigolds or daisies.

In the Losso trial, three volunteers were excluded because they had sleep apnea. If you snore loudly, wake up gasping or feel exhausted after a full night in bed, talk with a healthcare provider first.

Where Our Products Fit

Our Melatonin-Free Sleep Powder is coming soon, and you can join the waitlist now. Each scoop combines tart cherry, 3 g of glycine, 200 mg of magnesium from two forms, myo-inositol and apigenin, with no 5-HTP, no added sugar or sweeteners and no added melatonin. It is made to support restful sleep and relaxation and to help you wind down at night.

For the other ingredients, see our guides to glycine for sleep, apigenin and magnesium glycinate for sleep, or see how they compare in apigenin vs magnesium vs melatonin. For a calm evening without a drink, there is also our Theanine Nasal Spray, which delivers 36 mg of L-theanine per serving (one spray in each nostril), absorbed through the lining of the nose.

Frequently Asked Questions

Does tart cherry help you sleep?

Small juice trials have measured it. In healthy adults, 7 days of concentrate raised urinary melatonin and increased total sleep time and sleep efficiency versus placebo. Two pilot studies in older adults with poor sleep reported less waking in one and more recorded sleep in the other.

Is tart cherry extract better than tart cherry juice?

They are different forms. Extract has a small serving and very little sugar, while juice is the form used in the sleep trials above. The choice comes down to sugar, convenience and how you like to take it.

How much tart cherry juice did the sleep studies use?

The Losso 2018 trial used 240 mL twice a day (480 mL daily) for 2 weeks; the other two trials used concentrate or a juice blend for 7 days to 2 weeks.

How much melatonin is in tart cherry?

Only trace amounts of natural melatonin, which is why a tart cherry product with none added is labeled no added melatonin.

When should I take tart cherry for sleep?

The trials used daily servings for one to two weeks. Our Sleep Powder is taken as 1 scoop in water, 30 to 60 minutes before bed.

Can I take tart cherry with magnesium or glycine?

Many evening formulas pair them, including our Sleep Powder. If you take medication, ask a healthcare provider first. See our guide to natural sleep supplements that don't cause grogginess for more pairings.

What is tart cherry extract good for?

Capsule studies using a powdered tart cherry supplement at 480 mg a day for 10 days found less muscle soreness after lifting and better half-marathon times than placebo. Juice studies looked at sleep.

Does tart cherry extract have side effects?

Tart cherry is a fruit, and extract servings are small, with far less sugar than juice. If you take medication, ask a healthcare provider before starting it.

Sources

1. 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. 2012;51(8):909-916. PubMed 22038497
2. Pigeon WR, Carr M, Gorman C, Perlis ML. Effects of a tart cherry juice beverage on the sleep of older adults with insomnia: a pilot study. Journal of Medicinal Food. 2010;13(3):579-583. PubMed 20438325
3. Losso JN, Finley JW, Karki N, Liu AG, Prudente A, Tipton R, Yu Y, Greenway FL. Pilot study of the tart cherry juice for the treatment of insomnia and investigation of mechanisms. American Journal of Therapeutics. 2018;25(2):e194-e201. PubMed 28901958
4. Barforoush F, Ebrahimi S, Abdar MK, Khademi S, Morshedzadeh N. The effect of tart cherry on sleep quality and sleep disorders: a systematic review. Food Sci Nutr. 2025;13(9):e70923. PubMed 40964149
5. Levers K, Dalton R, Galvan E, et al. Effects of powdered Montmorency tart cherry supplementation on an acute bout of intense lower body strength exercise in resistance trained males. Journal of the International Society of Sports Nutrition. 2015. PubMed 26578852
6. Levers K, Dalton R, Galvan E, et al. Effects of powdered Montmorency tart cherry supplementation on acute endurance exercise performance in aerobically trained individuals. Journal of the International Society of Sports Nutrition. 2016. PubMed 27231439

Our products are not intended to diagnose, treat, cure or prevent any disease. This article is for education only and is not medical advice.