Do Lullabies Actually Help Babies Sleep?
What the research says about lullabies, why babies relax to songs in languages they have never heard, and why a parent's own recorded voice beats any recording.
Research from Harvard's Music Lab demonstrated that infants relax when played lullabies that are completely unfamiliar and in a foreign language — showing the response is universal and innate, not learned.
Optimal tempo: 60-80 BPM, approximating the maternal resting heartbeat
Classical music at naptime: 35% faster sleep onset in toddlers
Parent singing: Your voice is the most powerful calming element — releases oxytocin in both you and baby
Key characteristics: Slow tempo, smooth melody, simple repetitive patterns, soft dynamics
This is why we included a recording feature — your own voice singing or shushing is uniquely powerful for your baby. Record yourself and loop it alongside the ambient sounds.
Try it nowStart the Lullaby mix — free, no sign-up, plays straight from this page.
Play LullabyFor informational purposes only. Always consult your pediatrician for personalized guidance.