Quick Answer: Yes, tart cherries are one of the most evidence-backed foods for sleep. They are a natural source of plant melatonin and tryptophan, and multiple clinical trials have shown that tart cherry juice increases sleep duration and quality. Two doses of 30 ml concentrate (or 240 ml juice) daily, including one before bed, is the protocol most commonly studied.
In This Guide
Reading Time: 13 minutes
Of all the foods associated with better sleep, tart cherries have the most direct scientific support. This is not folk medicine. Multiple peer-reviewed clinical trials have tested tart cherry juice specifically against sleep outcomes and found measurable improvements. That makes cherries worth understanding properly.
This guide walks through the actual studies, the mechanisms behind why cherries affect sleep, how tart and sweet cherries differ, and the practical protocol that matches what researchers used in trials.
Why Cherries Are Different from Other Sleep Foods
Most foods that are said to help with sleep do so indirectly: they provide tryptophan, which the body converts to serotonin, which eventually becomes melatonin. That is a multi-step process that takes time and depends on several cofactors.
Tart cherries are different because they contain actual melatonin directly, not just precursors to it. This is rare in food. Most plant foods contain none at all. Tart cherries, particularly the Montmorency variety, contain measurable amounts of phytomelatonin alongside a range of anti-inflammatory polyphenols that appear to support sleep through separate pathways.
The research on cherries is specific enough, and the effect sizes consistent enough, that tart cherry juice is now included in dietary guidance from several sleep-focused health organisations. That is not something you can say about most "sleep foods."
The Research: What Studies Actually Found
Let us look at the actual clinical trials, because the details matter.
Pigeon et al. (2010), Journal of Medicinal Food
This was one of the first properly controlled trials. Fifteen older adults with chronic insomnia were randomly assigned to drink tart cherry juice or a placebo drink twice daily for two weeks, then crossed over to the other condition. The cherry juice group showed statistically significant improvements in insomnia severity as measured by the Insomnia Severity Index, and sleep efficiency improved. The authors concluded that tart cherry juice had effects comparable to valerian, a commonly used natural sleep aid.
Howatson et al. (2012), European Journal of Nutrition
This study is frequently cited as the landmark tart cherry and sleep trial. Twenty healthy volunteers drank either Montmorency tart cherry juice concentrate or a placebo for seven days. The cherry group showed significantly higher urinary melatonin levels (a marker of melatonin production), longer total sleep time (an average increase of 25 minutes), and better sleep efficiency. The researchers also measured reduced inflammation markers in the cherry group, suggesting the polyphenols in the juice contribute independently to sleep quality beyond the melatonin content alone.
Losso et al. (2018), American Journal of Therapeutics
Losso and colleagues tested tart cherry juice in adults over 50 with insomnia and found significant improvements in insomnia severity, wake time after sleep onset, and total sleep time. The cherry juice group fell asleep faster and woke fewer times during the night. The authors identified reduced inflammation (via lower levels of C-reactive protein and isoprostanes) as a likely contributing mechanism, alongside elevated melatonin.
This study is important because it looked at a population that commonly struggles with sleep, older adults whose natural melatonin production declines with age, and found meaningful benefits in that group specifically.
| Study | Population | Duration | Key Finding |
|---|---|---|---|
| Pigeon et al. (2010) | Older adults with insomnia | 2 weeks | Reduced insomnia severity; improved sleep efficiency |
| Howatson et al. (2012) | Healthy volunteers | 7 days | +25 min sleep; elevated melatonin; less inflammation |
| Losso et al. (2018) | Adults 50+ with insomnia | 2 weeks | Faster sleep onset; fewer night wakings; lower CRP |
These three studies all used tart cherry juice concentrate (Montmorency variety) in amounts of 30 ml concentrate mixed with water, taken twice daily: once in the morning and once in the evening before bed. The consistency across studies gives confidence in both the protocol and the effect.
What the Research Does Not Show
It is worth being honest about the limitations. These studies are generally small (15 to 30 participants), and most ran for only one to two weeks. The longest effects have not been studied. Tart cherry juice is not a cure for clinical sleep disorders, and it should not replace medical assessment if sleep problems are persistent or significantly affecting quality of life. But as a dietary intervention with a real, measured effect and no known side effects for most people, it holds up well.
Melatonin and Tryptophan in Cherries
The melatonin content of tart cherries varies by variety and ripeness, but Montmorency tart cherries contain approximately 13.5 nanograms of melatonin per gram of fresh fruit. That is low compared to a 1 mg supplement, but when consumed as juice concentrate (which condenses a large quantity of cherries), the cumulative intake is meaningful.
More importantly, the phytomelatonin in tart cherries appears to be bioavailable, meaning the body can absorb and use it. A 2012 study by Howatson's group measured urinary 6-sulfatoxymelatonin (the main melatonin metabolite excreted in urine) and confirmed that levels were significantly elevated after cherry juice consumption, meaning the melatonin in the juice was being absorbed and circulated.
The Anti-Inflammatory Pathway
Tart cherries are exceptionally rich in anthocyanins, the red and purple pigments that also function as anti-inflammatory compounds. Chronic low-grade inflammation is increasingly linked to sleep disruption. Inflammatory cytokines like TNF-alpha and IL-6 interfere with normal sleep architecture. By reducing systemic inflammation, the polyphenols in tart cherry juice may improve sleep quality through a pathway entirely separate from melatonin. This is likely why the effect size in trials is larger than would be predicted from melatonin content alone.
Tart cherries also contain tryptophan, which follows the familiar pathway to serotonin and endogenous melatonin production. The combination of direct phytomelatonin plus the tryptophan-to-melatonin pathway plus anti-inflammatory polyphenols is probably why cherries consistently outperform other "sleep foods" in direct studies.
Tart Cherries vs. Sweet Cherries
This distinction matters. Most of the research uses Montmorency tart cherries (also called sour cherries or pie cherries). These are the small, bright red, distinctly acidic cherries most often sold as concentrate or frozen, not as fresh fruit. They are different from the large, sweet Bing or Rainier cherries you find fresh at the grocery store in summer.
| Type | Melatonin Content | Polyphenols | Availability in Canada |
|---|---|---|---|
| Montmorency tart cherry (concentrate) | High (~13.5 ng/g fresh fruit) | Very high (anthocyanins, quercetin) | Health food stores, online; year-round |
| Sweet cherry (Bing, Rainier) | Lower | Moderate | Fresh in summer; limited in winter |
| Tart cherry juice (not concentrate) | Moderate | High | Some grocery stores, health food stores |
Sweet cherries are not useless for sleep but the evidence base for their specific sleep effects is much thinner. If you are trying to replicate what the studies found, Montmorency tart cherry concentrate is the right product. It is worth spending a few extra dollars on the correct variety rather than buying sweet cherry juice and expecting the same outcome.
How to Use Tart Cherry for Sleep
The protocol used in the majority of successful studies:
Evidence-Based Tart Cherry Sleep Protocol
- Form: Montmorency tart cherry juice concentrate (not sweetened cherry drink)
- Dose: 30 ml concentrate diluted in 200-250 ml water (or 240 ml of unsweetened tart cherry juice)
- Timing: Twice daily: once in the morning and once 30-60 minutes before bed
- Duration: At least 7 days before assessing effect; 2 weeks for clearer results
- Where to find it: Health food stores, bulk food stores, and online retailers across Canada. Look for "Montmorency" on the label.
What About Eating Fresh Cherries?
Fresh tart cherries are seasonal and not widely available across Canada in winter. When in season (typically July in Ontario), eating a handful of fresh Montmorency cherries in the evening is a reasonable approach, though the dose of melatonin is lower than concentrate. For a year-round strategy, concentrate or frozen tart cherries are more practical.
Potential Considerations
Tart cherry juice has a high natural sugar content. For people managing blood glucose, type 2 diabetes, or following a low-sugar diet, this is worth discussing with a doctor or dietitian before adding it regularly. The sugar in whole fruit and juice behaves differently from added sugar, but it is still relevant in large amounts. The concentrate doses used in studies are small enough (30 ml) that this is usually a minor concern, but it is worth knowing.
Cherry Supplementation Without the Sugar
Tart cherry capsule supplements exist and are used by athletes for recovery. They contain the polyphenol extracts (anthocyanins) but often without significant melatonin content. If sugar is a concern, capsules may be an option, but the evidence for their sleep effects is less established than for the whole juice. Consult a healthcare provider about what form best suits your health situation.
The Full Sleep Picture
Tart cherry juice improves sleep. The evidence is clear. But it works within a system, not in isolation. A glass of cherry juice before bed is not going to overcome a mattress that has you waking up in pain at 3 a.m., a bedroom that is too hot, or a schedule that puts you to bed at different times every night.
At Mattress Miracle, we have been helping Brantford families sleep better since 1997. In that time, we have seen a lot of people who have tried everything, supplements, sleep trackers, white noise machines, only to find that what actually changed their sleep was replacing an unsupportive mattress. The body needs to be physically comfortable to move through sleep cycles properly. Pain, pressure points, and overheating are all interruptions the brain registers and responds to, even if you do not fully wake up.
Brad, Owner, 40+ years of experience: "A customer came in last year who had been drinking tart cherry juice every night for months. It was helping a little, she said. When she laid down on our Restonic ComfortCare, she said it felt like what she imagined sleeping should feel like. Sometimes the mattress is the missing piece, and no amount of nutrition fixes a worn-out spring."
If you are interested in sleep nutrition and want to understand the full picture, our guides on bananas and sleep and creatine and sleep quality are worth reading alongside this one. And if you are curious about how your mattress fits into the equation, we are always happy to have that conversation. Our Restonic mattresses are a good starting point for most sleepers, and we can guide you to the right firmness and support level for your sleeping position and body type.
Finding Tart Cherry Products in Brantford and Ontario
Montmorency tart cherry concentrate is available at most health food stores in the Brantford area, including some grocery stores with expanded natural health sections. It is also easily ordered online year-round. The Niagara region of Ontario is known for Montmorency cherry production, so buying Canadian-grown product is often possible and worth looking for. When buying, check that the label specifies "Montmorency" or "tart cherry" rather than just "cherry juice," which is often sweet cherry and has a different nutritional profile.
Shop: Browse All Mattresses
Find Your Perfect Mattress at Mattress Miracle
We are a family-owned mattress store in Brantford, helping our community sleep better since 1997. Come try mattresses in person and get honest, no-pressure advice.
441 1/2 West Street, Brantford, Ontario
Call 519-770-0001Frequently Asked Questions
How long does tart cherry juice take to work for sleep?
Most studies saw measurable improvements within 7 days of consistent use, with more pronounced effects after 14 days. The effect is cumulative rather than immediate. Do not expect a single glass to have a strong effect. Consistent daily use, both morning and evening, is what produced the results seen in clinical trials.
Can I use tart cherry juice if I have diabetes?
Tart cherry juice contains natural sugars that can affect blood glucose levels. If you have diabetes or are managing blood sugar, speak with your doctor or dietitian before adding tart cherry juice to your routine. Tart cherry capsules (which contain the polyphenol extracts without significant sugar) may be an alternative, though the evidence for capsules' sleep effects is less established than for juice.
Are sweet cherries as effective as tart cherries for sleep?
The research specifically focuses on Montmorency tart cherries, which have higher melatonin and polyphenol content than sweet varieties like Bing. Sweet cherries are not without nutritional value, but they have not been tested in sleep trials with the same rigour as tart cherries. For sleep specifically, Montmorency tart cherry concentrate is the evidence-backed choice.
Can children drink tart cherry juice for sleep?
Tart cherry juice is generally considered safe for children, as it is a whole food product. However, dosing and appropriateness depend on the child's age, health, and any underlying conditions. Speak with your child's paediatrician before using tart cherry juice or any dietary supplement for sleep in children. The right sleep environment and routine are the foundation for children's sleep.
Does Mattress Miracle in Brantford sell sleep supplements?
We are a mattress store, not a supplement retailer. What we do sell is the other half of the sleep equation: quality mattresses, adjustable bases, pillows, and mattress protectors that create a supportive sleep environment. Tart cherry juice works better when you are sleeping on a mattress that does not fight against you. Come visit us at 441½ West Street in Brantford to try our full selection. Call us at (519) 770-0001.
Sources
- Pigeon, W.R., Carr, M., Gorman, C., & Perlis, M.L. (2010). Effects of a tart cherry juice beverage on the sleep of older adults with insomnia: a pilot study. Journal of Medicinal Food, 13(3), 579-583. doi.org/10.1089/jmf.2009.0096
- Howatson, G., Bell, P.G., Tallent, J., Middleton, B., McHugh, M.P., & Ellis, J. (2012). Effect of tart cherry juice (Prunus cerasus) on melatonin levels and enhanced sleep quality. European Journal of Nutrition, 51(8), 909-916. doi.org/10.1007/s00394-011-0263-7
- Losso, J.N., Finley, J.W., Karki, N., Liu, A.G., Prudente, A., Tipton, R., Yu, Y., & Greenway, F.L. (2018). Pilot study of the tart cherry juice for the treatment of insomnia and investigation of mechanisms. American Journal of Therapeutics, 25(2), e194-e201. doi.org/10.1097/MJT.0000000000000584
- Garrido, M., Paredes, S.D., Cubero, J., Lozano, M., Toribio-Delgado, A.F., Munoz, J.L., Reiter, R.J., Barriga, C., & Rodriguez, A.B. (2010). Jerte Valley cherry-enriched diets improve nocturnal rest and increase 6-sulfatoxymelatonin and total antioxidant capacity in the urine of middle-aged and elderly humans. Journals of Gerontology Series A, 65(9), 909-914. doi.org/10.1093/gerona/glq099
- Burkhardt, S., Tan, D.X., Manchester, L.C., Hardeland, R., & Reiter, R.J. (2001). Detection and quantification of the antioxidant melatonin in Montmorency and Balaton tart cherries (Prunus cerasus). Journal of Agricultural and Food Chemistry, 49(10), 4898-4902. doi.org/10.1021/jf010364r
Visit Our Brantford Showroom
We are located at 441½ West Street in downtown Brantford. Free parking available. Our team does not work on commission, so you get honest advice based on your needs.
Mattress Miracle, 441½ West Street, Brantford, ON, (519) 770-0001
Hours: Monday–Wednesday 10am–6pm, Thursday–Friday 10am–7pm, Saturday 10am–5pm, Sunday 12pm–4pm.
You are doing the right things with sleep nutrition. Come see us and let us make sure the mattress underneath you is doing its part too.
Shop This Topic at Mattress Miracle
Popular picks at Mattress Miracle:
Or shop our mattress collection in our Brantford showroom.
Related Reading
- Do Bananas Help You Sleep?
- Does Creatine Help With Sleep?
- Restonic Mattress Review
- Best Mattresses in Brantford