The Impact of Rain Sounds on Sleep

The sound of rain can help some people fall asleep thanks to its steady, soothing nature. By creating a continuous background sound, it can make sudden noises in the environment less noticeable, such as a passing car or a door slamming.

But while many people find rain relaxing, its effects on sleep quality have not yet been clearly established by scientific research. Here's what we know and how to enjoy the sound of rain at night without disturbing your sleep.

Why Does the Sound of Rain Help You Fall Asleep?

It Masks Noises That Might Wake You Up

It's not necessarily the overall noise level in a bedroom that disturbs sleep, but rather sounds that appear suddenly.

In a silent room, even the smallest noise can stand out. With rain playing in the background, the contrast between silence and an unexpected sound becomes less noticeable, making that sound easier to ignore.

This is why rain sounds may be particularly helpful for people sleeping in noisy environments, such as cities, homes near busy roads or buildings with noisy neighbours.

For more advice, take a look at our tips for sleeping soundly in a noisy environment.

It's a Steady and Predictable Sound

Continuous rainfall generally doesn't contain sudden silences or abrupt changes in sound. There's little to attract your attention.

Unlike a conversation or the radio, it doesn't convey information that your brain needs to follow, allowing your mind to relax.

It's Associated with Calm and Comfort

For many people, the sound of rain brings to mind the comforting feeling of being warm and sheltered indoors.

These personal associations probably contribute to its soothing effect, although this particular connection has not been scientifically measured.

White Noise vs. Pink Noise: Where Does Rain Fit In?

White noise contains all frequencies at equal intensity. It resembles radio static and often sounds relatively high-pitched.

Pink noise also contains a broad range of frequencies, but lower frequencies are more prominent. This gives it a softer, deeper sound.

The sound of steady rainfall can sometimes resemble pink noise, with a greater emphasis on lower frequencies. However, this depends on the type of rain and how it was recorded. Not all rain sounds have exactly the same acoustic characteristics.

Some laboratory studies have observed effects of pink noise on deep sleep.

However, these experiments used short sounds played at specific moments during sleep, rather than a continuous recording of rainfall. Their findings therefore cannot be directly applied to listening to rain sounds throughout the night.

To understand why some people find it difficult to sleep in complete silence, read our article Why Do Some People Need Noise to Fall Asleep?

What Does Research Say About Natural Sounds and Sleep?

On relaxation: a study published in Scientific Reports in 2017 found that listening to natural sounds could be associated with changes in brain activity and the nervous system that favour relaxation.

However, responses varied between participants. The study involved people who were awake, so its findings do not establish that natural sounds directly improve sleep.

On sleep: in 2021, a systematic review published in Sleep Medicine Reviews analysed 38 studies investigating different types of continuous noise used as a sleep aid, not just recordings of rain.

The researchers concluded that the evidence supporting improvements in sleep was of "very low quality" and called for further studies using objective measurements of sleep.

In short, the sound of rain can help create a relaxing atmosphere and mask distracting background noises. However, there is still no strong scientific evidence that it makes sleep deeper or more restorative.

How Should You Listen to Rain Sounds for Sleep?

If you enjoy falling asleep to the sound of rain, a few simple precautions can help you create a comfortable listening environment.

• Keep the volume low: just loud enough to mask the noises that disturb you.
• Choose a recording without thunder or sudden changes in volume, and make sure there are no noticeable interruptions when the recording loops.
• Place the device as far from your bed as possible, rather than on your bedside table.
• Use a speaker instead of headphones if you plan to listen throughout the night.
• Set a timer if you only need the sound to help you fall asleep. If outside noises tend to wake you during the night, keeping a gentle background sound playing may be more helpful.

The acoustics of your bedroom also play an important role.

Find out more in our article about how carpets and curtains affect bedroom acoustics and sleep quality.

Are Rain Sounds Suitable for Babies?

A gentle background sound can sometimes help mask household noises, but it is not essential for a baby's sleep.

If you use a device that plays rain sounds or white noise in your baby's bedroom, a few precautions are particularly important.

A study published in Pediatrics in 2014 measured the sound levels produced by 14 sleep machines designed for babies.

At a distance of just 30 cm and at maximum volume, all the devices exceeded 50 decibels, while three produced sound levels above 85 decibels.

As a precaution, place the device as far from your baby's cot as possible, keep the volume at its lowest setting and limit how long it is used.

In particular, avoid leaving loud background sounds playing throughout the night.

For more information, read our article How Can White Noise Help Newborn Babies Sleep?

Should You Listen to Rain Sounds to Sleep Better?

The sound of rain isn't a miracle solution for better sleep.

But if its steady rhythm helps you release tension and forget about the noises of the city, there's nothing wrong with enjoying it at a low volume.

Sometimes, simply spending a few minutes listening to the rain can make bedtime feel a little more peaceful.

Frequently Asked Questions About Rain Sounds and Sleep

Is the Sound of Rain White Noise?

Not exactly.

The sound of steady rainfall can sometimes resemble pink noise, with more emphasis on lower frequencies than white noise. However, this depends on the type of rain and how it was recorded.

Both types of sound can serve a similar purpose: creating a steady background noise that helps mask sudden, distracting sounds.

Why Do We Sleep Better When It Rains?

Many people find it easier to fall asleep when it's raining because the sound creates a steady background that masks outside noises without demanding their attention.

For some, rain also brings a sense of calm, warmth and shelter, making bedtime feel more relaxing.

Can You Sleep with Rain Sounds Playing All Night?

Yes, provided the volume remains low and the device is placed away from the bed.

If you only use rain sounds to help you fall asleep, setting a timer may be enough.

Do Rain Sounds Help You Sleep More Deeply?

This has not been scientifically established.

A review of 38 studies found that the evidence supporting the benefits of continuous noise for sleep was of very low quality.

The clearest practical benefit of rain sounds is their ability to mask distracting noises in your environment.

Can You Use Rain Sounds to Help a Baby Fall Asleep?

Rain sounds are not essential for a baby's sleep.

If you choose to use them, place the device as far from the cot as possible, set the volume to its lowest level and limit the duration of use.

At maximum volume, some baby sleep machines can produce sound levels above 85 decibels at a distance of 30 cm.

Sources

• Riedy et al. (2021), Noise as a Sleep Aid: A Systematic Review, Sleep Medicine Reviews: systematic review of 38 studies investigating the effects of continuous noise on sleep.
• Gould van Praag et al. (2017), Scientific Reports: research examining the relationship between natural sounds, brain activity and nervous system responses.
• Hugh et al. (2014), Infant Sleep Machines and Hazardous Sound Pressure Levels, Pediatrics: study measuring sound levels produced by infant sleep machines, summarised by the Children's Hospital of Philadelphia.

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