Can Bananas Help You Sleep? Try This Bedtime Smoothie for Restful Nights

Food has always been part of the conversation around sleep. From a warm cup of milk before bed to calming herbs and teas, certain foods and botanicals have long been associated with helping the body wind down at night. Today, research is beginning to shed light on why some of these traditional bedtime foods may have a place in a healthy sleep routine.

Bananas are one food that has become particularly well known as a potential bedtime snack. But is there any truth to the old idea that eating a banana can help you sleep? Let's take a look at the science.

In this article, you'll discover why bananas are a great bedtime snack and how blending them with tart cherry juice, magnesium, and melatonin supports restful sleep. Plus, you'll get my easy and delicious bedtime smoothie recipe to try tonight. 

Bananas are best known for their potassium, but this naturally sweet fruit also contains nutrients that can support your body's natural sleep processes. Magnesium, vitamin B6, and tryptophan all play important roles in the pathways involved in relaxation, neurotransmitter production, and melatonin synthesis.

Magnesium is an essential mineral involved in hundreds of processes throughout the body, including healthy nerve and muscle function—but it also plays an important role in relaxation and sleep (1).

Getting enough magnesium supports a calm, relaxed nervous system which, in turn, makes it an imperative part of a soothing bedtime routine. A medium banana provides around 30 milligrams of magnesium, giving you a small but useful boost alongside other magnesium-rich foods and supplements.

For more on the benefits of magnesium, see: Magnesium 101: Benefits, Food Sources, Daily Needs, and Supplement Types

Bananas also provide vitamin B6—a nutrient involved in neurotransmitter production and the metabolism of tryptophan (2).

Tryptophan is an essential amino acid that your body uses to produce serotonin, which can then be converted into melatonin—the hormone that helps regulate your sleep-wake cycle (2).

A banana also provides carbohydrates that can make a bedtime snack satisfying without being overly heavy.

Hunger isn’t exactly relaxing, but neither is being overly full. A simple snack that combines carbohydrates with other nourishing ingredients can help you feel comfortably satisfied as you transition into your nighttime routine.

Want to give your banana bedtime smoothie an extra sleep-supportive boost? Add a splash of tart cherry juice.

Tart cherries naturally contain melatonin, and research has found that tart cherry juice can increase melatonin availability and support healthy sleep patterns (3).

The combination also makes for a delicious smoothie: banana provides natural sweetness and a creamy texture, while tart cherry juice adds a bright, slightly tangy flavor.

To learn more about the sleep benefits of tart cherry juice, see Enhance Sleep Naturally With Dr. Green Mom’s Bedtime Mocktail 

Bananas and tart cherry juice provide a delicious food-based foundation for your nighttime routine. For additional support, pair your smoothie with Mighty Magnesium™ and Help Me Sleep!™.

Mighty Magnesium™provides supplemental magnesium to support relaxation, while Help Me Sleep!™ combines melatonin and herbal ingredients to support your body's natural sleep-wake cycle.✝︎︎

Together, these simple additions make it easy to turn a nutritious bedtime smoothie into a relaxing nightly ritual.

For more on melatonin, see: Melatonin vs. Herbal Sleep Support: Understanding Two Different Approaches to a Restful Night

Good sleep starts long before your head hits the pillow. Along with nourishing your body, give yourself time to transition out of the day's activities. Dim the lights, put away stimulating screens, take a warm shower, stretch, read a few pages of a book, or simply enjoy your bedtime smoothie while you relax.

Consistency matters, too. Going to bed and waking up around the same time each day helps reinforce your body's natural circadian rhythm. When you combine those habits with sleep-supportive nutrition, you're giving your body the tools it needs to settle into a restful night.

Want to optimize your bedtime routine even more? Check out The Optimal Bedroom Temperature for Every Age (And Other Gentle Ways to Support Restful Sleep)

So, can bananas help you sleep? Absolutely—they can be a delicious part of a sleep-supportive routine.

Bananas provide magnesium, vitamin B6, and tryptophan, all of which support processes involved in nervous system function and the body's natural production of sleep-related neurotransmitters and hormones. Tart cherry juice adds naturally occurring melatonin, while supplemental magnesium and melatonin can provide additional targeted support.

So, the next time you're looking for a simple nighttime snack, skip the complicated recipes and reach for a banana. Blend it with tart cherry juice, add your favorite sleep-supportive ingredients, and make it part of a relaxing ritual that helps you end the day—and prepare for a better night.

1. Arab A, Rafie N, Amani R, Shirani F. The role of magnesium in sleep health: A systematic review of available literature. Biological Trace Element Research. 2022;201(1). doi:10.1007/s12011-022-03162-1
2. Medlineplus. Tryptophan: MedlinePlus Medical Encyclopedia. Medlineplus.gov. 2013. Accessed September 11, 2026. https://medlineplus.gov/ency/article/002332.htm 
3. 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. 2011;51(8):909-916. doi:10.1007/s00394-011-0263-7