Newborn sleep and settling

What this covers

What newborn sleep actually looks like

Newborn sleep cycles run roughly 45 minutes, and a newborn surfaces at the end of each one. A baby who wakes after 20 to 45 minutes is not broken — they are doing the thing newborns do. Knowing that changes what you try next, because you stop fighting the cycle and start working with the join between cycles.

Reading the run-up, not the cry

Babies almost never go from calm to screaming without a run-up. The yawn, the glazed stare, the hand to the mouth, the sudden squirm — these come first, and a baby settled during the run-up settles in a fraction of the time. Most settling problems are timing problems in disguise.

Overtired versus overstimulated

They look similar and they need opposite responses. Overtired needs less input and a faster route to sleep; overstimulated needs a genuine wind-down first. Getting this pair the wrong way round is the single most common reason a settling routine that 'used to work' suddenly stops.

What to change first

When everything feels broken, change one thing: the environment, the timing, the feed, or the settling method — in that order. Changing four at once means you learn nothing, and you will be back here in a week with the same question and less sleep.

When to bring someone in

There is a point where more information stops helping and rest is the only thing that will. Overnight support is not giving up; it is the fastest way most families get back to a night that works, because the settling happens with you rather than being described to you.