For nine months, your baby never heard silence. There was the rushing of blood, the steady rhythm of a heartbeat, the gurgle of digestion and, through all of it, the muffled sound of your voice. Then, suddenly, a quiet nursery. Womb-like sounds are one gentle way to bridge that gap in the first weeks. If you’re in the thick of the newborn stage, our guide to newborn sleep covers the bigger picture.
This page is part of our guide to baby sleep sounds. Before anything else, please read the safe-sleep box below: soothing sounds never replace safe sleep.
Real previews from the app. Play them softly.
What does a baby hear in the womb?
A baby in the womb hears a constant, low background: the whoosh of blood flowing through the placenta and large blood vessels, the slower rhythm of the mother’s heartbeat, digestion sounds and muffled voices from outside. It’s far from silent, and the sound never stops.
Your voice is part of that world too. In a classic study, DeCasper and Fifer (1980) found that newborns would change their sucking pattern to hear their own mother’s voice rather than another woman’s, a sign that they recognized it from before birth.
Why do womb sounds and shushing calm newborns?
Womb-like sounds are a familiar, steady background for a baby who’s only just arrived. The AAP’s parenting site, HealthyChildren.org, notes that sounds that remind babies of the womb, such as a white noise device or a recording of a heartbeat, may be calming. The NHS similarly suggests that gentle noise in the background may help distract a crying baby.
Sound is usually one part of newborn soothing, alongside holding, gentle rocking, feeding and a calm, dim room. It won’t settle every cry. If your baby cries for long periods, seems unwell or you’re worried, talk to your pediatrician or health visitor.
Womb sounds, heartbeat or shushing: which to choose?
| Sound | What it’s like | Often used for |
|---|---|---|
| Womb sounds | A muffled, rushing whoosh with a soft pulse | Settling in the first weeks, night wakings |
| Heartbeat | A slow, steady beat | Cuddles, feeds and the moments before sleep |
| Shushing | A soft, rhythmic shhh | Calming fussiness, giving your own voice a rest |
| White noise | An even, bright hiss | Masking household noise during naps and nights |
Many newborns respond well to plain white noise for babies too. Try each for a night or two and keep what your baby settles to at the lowest volume.
How to use womb sounds safely
These points follow the AAP’s 2022 safe sleep recommendations. Our safe sleep checklist covers everything in one place, and you can read more about volume in is white noise safe for babies.
How long should you use womb sounds?
Most families use womb sounds and shushing in the first three months or so, when babies are adjusting to life outside the womb. There’s no rule for when to stop. As your baby grows, you might move to rain or pink noise, lower the volume gradually, or switch to a lullaby as the new bedtime cue.
Womb sounds in Baby Mantra
Womb sounds and heartbeat are both among Baby Mantra’s 5 free sounds, with no account needed, so you can try them tonight. You can mix them with shushing or white noise (up to three sounds at once) and set each volume separately, for example the womb whoosh as the base with a soft heartbeat on top. For night feeds, dim night mode keeps the screen dark while the sound plays, and a sleep timer from 15 minutes to 2 hours fades out gently.
The free First Night collection pairs gentle rain with six softly spoken affirmations drawn from across the themes. It’s a calm way for you to wind down during those early nights too.
Your voice: the most familiar sound of all
No recording is as familiar to your baby as you. Many parents sing, hum or simply talk softly at bedtime, and a recording lets your voice keep playing softly while you rest. In Baby Mantra you can record your own lullaby or message and play it inside a soft mix. Recordings stay on your phone.
Real previews from the app. Play them softly.
Sources
- DeCasper AJ, Fifer WP. Of human bonding: newborns prefer their mothers’ voices. Science, 1980.
- Spencer JA, Moran DJ, Lee A, Talbert D. White noise and sleep induction. Archives of Disease in Childhood, 1990.
- Moon RY, Carlin RF, Hand I; AAP Task Force on SIDS. Sleep-Related Infant Deaths: Updated 2022 Recommendations for Reducing Infant Deaths in the Sleep Environment. Pediatrics, 2022.
- HealthyChildren.org (AAP). How to Calm a Fussy Baby: Tips for Parents & Caregivers.
- NHS. Soothing a crying baby.
- HealthyChildren.org (AAP). How to Keep Your Sleeping Baby Safe: AAP Policy Explained.
