5 Foods That Help You Sleep Better

A kiwi fruit and banana smoothie can help promote better sleep

A good night’s sleep doesn’t just depend on how calm your mind is or how comfortable your bed feels, it also begins with what’s on your plate. The foods you eat can quietly influence the quality and rhythm of your sleep. From fruit to fish, certain nutrients help your body produce the hormones that tell it when to rest.

How Food Affects Sleep

Certain foods contain natural compounds that influence the hormones and brain chemicals linked to sleep. From regulating melatonin to stabilising blood sugar levels overnight, the nutritional components of what you eat can have a surprising impact on how well you rest. Understanding these effects helps you make more sleep-supportive choices at mealtimes.

Melatonin: Often called the “sleep hormone,” melatonin regulates when you feel sleepy and awake. Some foods naturally contain it, such as tart cherries, nuts, and certain grains, while others help your body produce it. Balanced melatonin levels promote healthy circadian rhythms and ease sleep onset.

Tryptophan: This essential amino acid is the building block for both serotonin and melatonin. Foods like milk, turkey, eggs, and nuts contain tryptophan, which the body converts into serotonin, a calming neurotransmitter, before transforming it into melatonin.

Carbohydrates: Pairing complex carbohydrates with tryptophan-rich foods helps your brain absorb and use tryptophan more efficiently. A small portion of oats, wholegrain toast, or banana in the evening can gently encourage sleepiness.

Magnesium: Known for its calming properties, magnesium supports muscle relaxation and regulates melatonin production. Magnesium-rich foods such as almonds, spinach, and avocado can help reduce nighttime restlessness.

When it comes to improving sleep through diet, it’s often the small, consistent changes that make the biggest difference. Choosing foods rich in these natural compounds can help your body unwind more easily at night.

Below are five simple, evidence-based foods that can gently support better sleep.

  1. Tart Cherries

Tart cherries and their juice are a natural source of melatonin, helping to regulate your body’s sleep–wake cycle. Research suggests they can lengthen total sleep time and improve sleep efficiency. A small glass of tart cherry juice about one to two hours before bed can be a simple, natural way to nudge your body towards sleep.

  1. Fatty Fish

Salmon, mackerel, and trout are rich in omega-3 fatty acids and vitamin D, two nutrients that support serotonin production, a key precursor for melatonin. Eating fatty fish a few times a week has been associated with deeper, more consistent sleep. Try a light dinner of grilled salmon and vegetables a few hours before bedtime.

  1. Milk

The familiar ritual of a warm glass of milk before bed has scientific grounding. Milk contains tryptophan, an amino acid your body uses to make serotonin and melatonin. Warming it before bed can also act as a calming cue, helping your body prepare for rest.

  1. Nuts — Especially Almonds and Walnuts

Almonds and walnuts provide a trio of nutrients that aid rest: magnesium, zinc, and melatonin. Magnesium helps relax muscles and calm the nervous system, while melatonin supports your body’s natural sleep rhythm. A small handful of nuts after dinner can be an easy way to promote better rest.

  1. Kiwifruit

Kiwifruit is rich in antioxidants, fibre, and serotonin, and has been shown to support falling asleep faster and staying asleep longer. In one study, adults who ate two kiwis an hour before bed experienced measurable improvements in sleep quality. Add it to a small evening snack or enjoy it on its own before winding down.

Beyond these five foods, there are also other sleep-supportive choices. Foods like whole-grain rice, oats, and legumes provide complex carbohydrates that help the brain absorb tryptophan more effectively. Foods rich in zinc, such as pumpkin seeds or shellfish, and those high in calcium, including leafy greens or yoghurt, can also support the natural production of sleep-regulating hormones.

Bringing It All Together

Food alone isn’t responsible for good sleep, but it can play an important supporting role. When combined with healthy sleep habits, such as avoiding caffeine or alcohol in the evening, skipping heavy or spicy meals right before bed, and creating a consistent wind-down routine, the right foods can help your body recognise it’s time to rest.

If you’re struggling with persistent sleep difficulties or suspect a specific sleep disorder, speak with a qualified healthcare or sleep practitioner so they can diagnose the underlying cause and recommend the right treatment.

And if you’re ready to build your own calming bedtime routine, download our 5-Step Sleep Coach Method to learn how small, consistent changes can lead to deeper, more restorative sleep.(1-6)

 

For a deeper look into common sleep disorders and what might be affecting your rest, visit our Sleep Education page.

References

  1. Pigeon, W.R., Carr, M., Gorman, C. and Perlis, M.L. (2010) ‘Effects of tart cherry juice beverage on the sleep of older adults with insomnia’, Journal of Medicinal Food, 13(3), pp. 579–583. Available at: https://doi.org/10.1089/jmf.2009.0096
  2. Losso, J.N., Finley, J.W., Karki, N., Liu, A.G., Prudente, A., Tipton, R., Yu, Y. and Greenway, F.L. (2018) ‘Pilot study of tart cherry juice for the treatment of insomnia and investigation of mechanisms’, American Journal of Therapeutics, 25(2), pp. e194–e201. Available at: https://pubmed.ncbi.nlm.nih.gov/28901958/
  3. Hansen, A.L., Dahl, L., Olson, G., Thornton, D., Graff, I.E., Frøyland, L., Thayer, J.F. and Pallesen, S. (2014) ‘Fish consumption, sleep, daily functioning, and heart rate variability’, Journal of Clinical Sleep Medicine, 10(5), pp. 567–575. Available at: https://doi.org/10.5664/jcsm.3714
  4. Lin, H.H., Tsai, P.S., Fang, S.C. and Liu, J.F. (2011) ‘Effect of kiwifruit consumption on sleep quality in adults with sleep problems’, Asia Pacific Journal of Clinical Nutrition, 20(2), pp. 169–174. Available at: https://pubmed.ncbi.nlm.nih.gov/21669584/
  5. Reiter, R.J., Manchester, L.C. and Tan, D.X. (2005) ‘Melatonin in walnuts: Influence on levels of melatonin and total antioxidant capacity of blood’, Nutrition, 21(9), pp. 920–924. Available at: https://linkinghub.elsevier.com/retrieve/pii/S0899900705001632
  6. Meng, X., Li, Y., Li, S., Zhou, Y., Gan, R.Y., Xu, D.P. and Li, H.B. (2017) ‘Dietary sources and bioactivities of melatonin’, Nutrients, 9(4), p. 367. Available at: https://pubmed.ncbi.nlm.nih.gov/28387721/
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