Research / Safety

Safety

Calm, predictable reassurance at night.

These lines tell your child they are safe, held, and that you'll be there. They are meant to be familiar, steady, and boring in the best way.

The 8 phrases

• You are safeThe oldest lullaby.
• I've got youClose and low.
• This room is safeLook around as you say it.
• The night is gentleSlow the vowels.
• You can let goExhale on “go.”
• Home is hereEnd with a smile they can hear.
• I am right hereSlow, warm, and close.
• I'll be here in the morningA promise that is easy to keep.

The line under each phrase is the tip shown in the app when you record it.

What the research says

• Parents who respond sensitively tend to have children with more secure attachment (see the Love folder for the studies).
• In a randomized study of 405 mothers of babies and toddlers (7 to 36 months), a consistent three-step bedtime routine led to faster sleep onset, fewer night wakings, and better maternal mood than usual routines.
• In a large parent-reported survey, a parent being present while the child falls asleep was linked to more night wakings. This is one reason the folder pairs “I am right here” with “I'll be here in the morning.”
• In a hospital study of 62 premature babies, listening to a recording of their mother's voice lowered heart and respiratory rate. This is a neonatal-unit finding, not evidence about healthy babies sleeping at home.

How we used it

Lines are short, literal, and repeatable. Presence lines are balanced with morning lines, and nothing promises more than a parent can deliver.

What we don't know

• Sleep findings come mostly from parent reports and describe associations, apart from the routine trial.
• The parent-voice study involved premature infants in a hospital. We make no claim that voice recordings improve sleep for any child.

Sources

• Madigan et al. (2024). Maternal and paternal sensitivity: key determinants of child attachment security examined through meta-analysis. Psychological Bulletin.
• De Wolff & van IJzendoorn (1997). Sensitivity and attachment: a meta-analysis on parental antecedents of infant attachment. Child Development.
• Mindell et al. (2009). A nightly bedtime routine: impact on sleep in young children and maternal mood. Sleep.
• Mindell et al. (2009). Parental presence at bedtime may result in sleep difficulties in young children (American Academy of Sleep Medicine summary).
• Effects of standardized acoustic stimulation in premature infants: a randomized controlled trial. Journal of Perinatology.

Review status: not yet reviewed by a clinician. Not medical advice.