The Newborn Sleep Schedule: What to Expect in the First 6 Months

There's a reason 'sleep when the baby sleeps' is the most-repeated advice given to new parents. Newborn sleep is genuinely unpredictable — and understanding why can make the early months feel significantly less chaotic.
Here's a realistic, reassuring guide to what baby sleep actually looks like across the first six months, and what you can do to support it at each stage.
0–6 Weeks: No Schedule, No Problem
Newborns sleep between 14 and 17 hours per day, but only in short bursts of 2 to 3 hours at a time. Their circadian rhythm — the internal body clock that regulates day and night — hasn't developed yet. This means they genuinely don't know the difference between 2 pm and 2am, and no amount of routine-setting will change that in the first weeks.

Your job in this stage isn't to create a schedule. It's to respond to your baby's cues, ensure they're feeding often enough (every 2 to 3 hours for breastfed babies, every 3 to 4 hours for formula-fed), and keep the sleep environment as safe and comfortable as possible. The American Academy of Pediatrics recommends room-sharing without bed-sharing for at least the first six months.
Newborns sleep 14–17 hours daily — but only in 2 to 3 hour windows. This is normal, not a sleep problem.
6–12 Weeks: The First Signs of Rhythm
Around 6 to 8 weeks, most babies begin to show the earliest signs of a circadian rhythm. They start to become more alert and responsive during daylight hours, which means night sleep gradually begins to consolidate. This is a good time to introduce a simple, consistent bedtime routine — bath, feed, song, sleep. Research suggests babies can begin to recognise routines as early as 8 to 12 weeks, and establishing one now can pay significant dividends later.
Temperature remains a major factor in night waking during this stage. A baby who goes down comfortably at 7pm in a warm room may find that room significantly cooler by 3am as the heating cycles off — and wake as a result. Using a thermoregulating sleep sack like the Goldie Kids Merino Wool Sleep Sack removes this variable entirely, letting the fabric respond to temperature changes so you don't have to.
3–4 Months: The Sleep Regression
Just when sleep seems to be improving, many parents hit the dreaded 4-month sleep regression. This is a genuine neurological milestone — your baby's sleep cycles are maturing to become more adult-like, with more transitions between light and deep sleep. This means more opportunities to fully wake between cycles.
The 4-month regression isn't something you can prevent, but you can soften it. Babies who are already falling asleep independently (rather than being rocked or fed to sleep) tend to navigate the regression more easily, because they have the skills to self-settle between cycles.
4–6 Months: Longer Stretches Ahead
By 4 to 6 months, many babies begin sleeping longer stretches at night — some managing 6 to 8 hours. Sleep training, if you choose to pursue it, is generally considered appropriate from around 4 to 6 months. By this point, most babies have the physiological capacity to go longer without a feed overnight.
Whatever approach you take to sleep training, maintaining a consistent, calm sleep environment continues to matter. Comfortable temperature, familiar sounds, and the reassurance of the same sleep sack night after night all contribute to a sense of safety that supports sleep. The Goldie Kids Merino Wool Pyjamas, worn as a base layer under the sleep sack, keep that skin-level comfort consistent — the same soft, temperature-regulating fabric your baby has come to associate with sleep.

→ Shop the Merino Wool Sleep Sack and Merino Wool Pyjamas at goldiekids.ca
— Goldie Kids
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