Dummy dependency and sleep

This guide is general information only and isn't a substitute for medical advice. If you're concerned about your child's health, or they're unwell, please see a doctor.

Dummies are a genuine double act. They help a lot of babies settle, and there is some evidence they may lower the risk of SIDS. They can also become a 4am job, when the dummy falls out and your baby can't find it. Here's how to think about it, with the safe-sleep angle first because it matters most.

The safe-sleep picture

Some evidence links consistent dummy use with a lower risk of SIDS, though how it helps isn't fully understood. Red Nose treats that evidence as inconclusive, so it neither recommends dummies for reducing the risk nor discourages their use. For breastfed babies, Red Nose advises waiting until breastfeeding is established, usually around four to six weeks, before introducing a dummy; bottle-fed babies can be offered one from birth. If your baby refuses the dummy, don't force it, and never use dummy chains, clips or cords during sleep. Red Nose also advises that if the dummy falls out of your baby's mouth during sleep, it does not need to be reinserted.

The 4am problem

The classic dummy dependency issue is the young baby who needs the dummy to fall asleep but can't yet find and replace it themselves, so it falls out at every sleep-cycle wake and someone has to pop it back in all night. This is a phase: once babies can reliably find and reinsert the dummy themselves, which many manage in the second half of the first year, the night-time replug service usually ends. Treat that timing as a rough guide rather than a fixed milestone, since it varies a lot from baby to baby.

Your options

• Ride it out: many families keep the dummy and wait for the self-replug skill to develop.
• Teach the skill: during the day, help your baby practise finding and putting the dummy in themselves, so that in time they can resettle with it without you needing to step in overnight.
• Remove the dummy for sleep: if it's causing more waking than it's worth, you can drop it and settle another way, expecting a few unsettled nights.

Phasing it out later

Red Nose notes you can begin gently phasing out the dummy after your baby turns one, and that dummies should be stopped between two and four years of age to reduce the risk of dental problems. There's no rush at the younger end; pick a calm period, not the middle of a regression or a house move.

Whatever you decide, consistency is what makes it easier: chopping and changing, dummy one night and not the next, tends to prolong the unsettled patch. Choose an approach that suits your baby's age and your own tolerance for a few disrupted nights, then give it a clear run of several days before you judge whether it's working.

Sources

• Red Nose Australia, Does dummy use reduce the risk of sudden unexpected death in infancy?
• Red Nose Australia, Using a dummy safely

Last updated: July 2026. Sources include Red Nose Australia and Raising Children Network where cited above. This guide is general information only. For individual concerns, see your GP or child health nurse.