Why White Noise Can Help Babies Settle

Many new parents have noticed that when their baby is crying or fussy, sounds such as rainfall, a fan, or a heartbeat can often help them gradually calm down.

This is not a coincidence. Research on white noise and infant sleep began as early as the 1990s. Spencer and other researchers found that newborns who listened to white noise were more likely to fall asleep within a short period of time, with nearly three times as many babies falling asleep compared with those who did not listen to white noise.

A Familiar Sound Environment

The reason is simple: before birth, babies spend months in the womb, which is far from silent. The mother's heartbeat, blood flow, breathing, and other body sounds create a continuous and familiar background sound, sometimes compared to having a vacuum cleaner running nearby. For babies, these sounds are not disturbing. Instead, they are signals of safety and comfort.

After birth, babies suddenly enter an unfamiliar world. Sudden sounds such as doors closing, people talking, or traffic outside may easily make them feel unsettled. White noise is steady, even, and continuous. It can help mask disruptive background noise and create an environment that feels closer to the soundscape babies were familiar with in the womb.

That is why, when a baby is restless, crying, or struggling to settle due to gas discomfort or changes in the environment, white noise may help trigger a calming response and bring a sense of security similar to being back in the womb.

Using White Noise Properly

However, white noise should be used properly. When using white noise for babies, louder is not better, and longer playback is not always better. It is recommended to keep the volume at a moderate level, avoid placing the product too close to the baby's ears, and choose a professional baby sound machine with a timer, stable sound quality, and a variety of soothing sounds.

Instead of simply playing white noise from a phone, a dedicated baby sound machine designed for soothing and sleep is a more suitable choice.

Meet the A800L Portable Sound Soother

• Record the mother's heartbeat: The A800L can record and play back the mother's heartbeat, bringing a familiar sound into the baby's sleep environment.

• 20 different soothing sounds: Heartbeat sounds, natural sounds, lullabies, and white noise provide a variety of choices for different sleep routines.

• Three selectable modes: Choose music mode, night light mode, or music and light mode.

• Auto-off timer: Select 15, 30, or 60 minutes, with green, yellow, and red color indicators.

• Gradual sound reduction: After the timer is set, the sound gradually decreases until playback stops completely.

• Recorded-sound playback: Play back recorded sounds whenever needed.

• Suitable for all ages: The A800L can be used as part of the sleep and relaxation routines of babies, children, and adults.

• 10 night-light colors: Choose a preferred color to create a comfortable nighttime atmosphere.

• Seven volume levels: Adjust the sound to suit different rooms and environments.