Baby Sound Machine Safety – Decibel Levels: How Loud is Too Loud for Infants?

White noise and sound machines are widely used to help babies sleep, but many parents wonder:
how loud is too loud? While sound machines can mask household noise and create a consistent sleep environment, improper use can expose infants to unsafe noise levels, potentially affecting hearing development and sleep quality.
Understanding safe decibel levels for babies is essential for ensuring effective yet safe sound machine use. Learn more about decibel (dB) range safety for infants in our glossary entry here.
What Is the Safe Decibel Range for Baby Sound Machines?
Experts recommend keeping sound machines at or below 50 dB to prevent hearing strain or overstimulation.
✔ 30–50 dB – Ideal range for baby sleep (equivalent to a quiet library).
✔ 50–60 dB – Acceptable for short periods, but prolonged exposure should be avoided.
✔ Above 70 dB – Too loud and may contribute to hearing sensitivity or discomfort.
💡 Tip: Use a decibel meter app on your phone to check your sound machine’s volume.
Why Do Babies Need White Noise?
White noise can mimic womb-like sounds, helping babies:
- Fall asleep faster and stay asleep longer.
- Block out household noise that could disrupt sleep.
- Reduce stress and overstimulation.
However, the wrong decibel level or incorrect placement can create safety concerns.
How to Use a Baby Sound Machine Safely
1. Keep the Volume Below 50 dB
Always set the machine to the lowest effective volume to prevent long-term hearing risks.
2. Place the Machine at Least 7 Feet Away from the Crib

Sound should be dispersed, not directed at the baby’s ears. Avoid placing the machine inside the crib or too close to the sleep area.
3. Use Continuous, Soft Sounds
Choose gentle white noise, rain sounds, or lullabies over harsh, high-pitched frequencies that may be too stimulating.
4. Set a Timer
Instead of running all night, consider using a timer for the first 30–60 minutes of sleep.
5. Monitor for Signs of Overstimulation
If your baby startles easily, wakes up frequently, or seems agitated, the sound may be too loud or too stimulating.
Best Baby Sound Machines with Adjustable Decibel Levels
📌 Hatch Rest+ – Customizable volume with app control and automatic shutoff.
📌 LectroFan Alpha – Compact, travel-friendly with adjustable white noise levels.
📌 Yogasleep Dohm – Natural fan-based white noise with precise volume control.
Final Thoughts
While sound machines are a great sleep aid for infants, proper volume control and placement are crucial to prevent hearing issues. Keeping sound levels at 50 dB or lower and ensuring proper machine placement will help your baby sleep safely and soundly.
For more details on decibel safety for infants, visit our glossary entry on dB range.
Would you use a baby sound machine in your nursery? Let us know in the comments!