Shush vs white, pink and brown noise vs heartbeat: which sound for your baby?

The sounds at a glance

The table below describes how each sound comes across and when parents tend to reach for it. It is a starting point for choosing, not a promise of results.

Shush: for calming, and for layering

A shush track replaces the sound many parents make themselves, often until their mouth is tired. Many find it works best when the baby is crying or fussing, and reviewers often say they love being able to "add shushing to the white noise": a quieter shush layered over a steady base.

White vs pink vs brown noise

All three are steady hissing sounds, but they balance high and low frequencies differently. White noise spreads energy evenly up to the highest frequencies, so it sounds bright. Pink noise rolls off the highs and sounds softer, like rain. Brown noise is weighted toward the lows and sounds deep, like a waterfall or distant thunder.

White noise tends to feel strongest at masking household sounds, while many parents pick pink or brown for all-night use because it feels less tiring to listen to. The same volume setting can feel louder or quieter depending on the type, so recheck the level whenever you switch.

Heartbeat and womb sounds

A heartbeat is a steady pulse; womb sounds combine a low whoosh with a pulse. Parents often use them in the newborn weeks because they resemble what a baby heard before birth. As one reviewer put it, "I put the heartbeat sound on for my twins and we all slept."

Household sounds: vacuum, hair dryer, fan

A surprising number of babies respond to a steady motor: "My little one likes the vacuum noise the most." Playing it from an app instead of running the real appliance avoids heat, power use and safety worries, and lets you stop whenever you like. These sounds are naturally loud, so keep the volume especially low.

How to find your baby's sound

Change one thing at a time, or you will not know what helped.

• For a newborn, start with womb sounds or heartbeat; for an older baby, start with white or pink noise.
• Use one sound for two or three days at the same times and note how long it takes to fall asleep.
• If there is a lot of crying, layer a shush on top, then lower the total volume again.
• Save combinations that work and name them by situation: nap, night, car seat.

The sounds in Lullawave

Lullawave includes in the womb, gentle shush, heartbeat, white, pink and brown noise, night fan, hair dryer, vacuum, soft rain, slow waves, car ride and music-box lullabies (Brahms lullaby, Twinkle little star, Moon chimes). All are generated on the phone and play without gaps. Layer up to 3, set each volume and save the mix. Every session is logged automatically, so it is easy to look back at which sound was playing on the good nights.

Not medical advice

This guide is general information about using a white-noise app. It is not medical advice. For decisions about your baby's sleep, hearing or health, follow the pediatrician who knows your baby. Lullawave is not a baby monitor and does not replace a safe sleep environment.