Welcoming a newborn is an incredible experience, and also an exhausting one. In those first six weeks, life can feel like a continuous loop of feeding, nappy changes and settling. This phase is completely normal and it does not last forever. The tips below will help you understand what is happening and give you practical ways to support your baby's sleep from day one.
Understanding Newborn Sleep Patterns
Babies are born with an abundance of maternal melatonin, which makes them very sleepy in the first days of life. They wake, feed, poop and drift back off again, often repeatedly. At this stage, your primary focus should be on establishing good feeding and ensuring your baby is gaining weight as expected.
Newborns do not have a fully developed circadian rhythm, so they sleep and feed around the clock with little distinction between day and night. To help them learn the difference as quickly as possible, keep daytime naps in well-lit rooms and maintain a quiet, dimly lit environment during any night-time wakeful periods.
Recognising REM Sleep
REM (Rapid Eye Movement) sleep is sometimes called active sleep. During REM, your baby may breathe rapidly, twitch, grimace, grunt or even cry briefly. Their eyelids can flutter and they may smile. In non-REM sleep, babies breathe more slowly and barely move.
Parents often mistake REM sleep movements for waking, but babies frequently transition from REM back into deeper non-REM sleep without fully rousing. Before picking your baby up, pause and watch for a moment to check whether they are genuinely awake or simply cycling into their next sleep phase.
Wake Windows
Newborns can only tolerate short periods of wakefulness before becoming overtired, usually 45 minutes to just over an hour in the first few weeks. Missing the ideal sleep window can trigger stress hormones and increased fussiness. Respecting appropriate wake windows gives your baby the best chance of settling easily and sleeping for longer stretches.
Wake Them to Feed During the Day
Newborns tend to compensate for missed daytime feeds by waking more frequently at night. If your baby has been sleeping for close to three hours during the day, wake them for a feed. Meeting more of their calorie needs during daylight hours gives you a better chance of longer overnight stretches.
Creating the Right Sleep Environment
Once your baby has learnt to distinguish day from night, usually by three to six weeks, transition to keeping all sleep times in a dark room, including daytime naps. Even small amounts of light can stimulate a curious baby and contribute to short catnaps. Morning sunlight signals the brain to wake, so blocking it out protects both nap length and overnight sleep quality.
Melatonin, the hormone that promotes deep sleep, is produced only in the absence of light. A pitch-dark room, without night lights, supports the best quality sleep for your newborn.
White Noise
White noise mimics the constant sound environment of the womb, helping your baby settle more easily and stay asleep longer. It also acts as a sound buffer, masking sudden household noises that could otherwise startle your baby awake.
Using white noise consistently as a sleep cue builds a reliable association with sleep time. It is also useful when you need your baby to nap in an unfamiliar environment or while out and about.
Settling Techniques for the First Six Weeks
Swaddling
All newborns have a strong Moro reflex (startle reflex), which can be triggered by changes in light, sound or sudden movement and easily disrupt sleep. Swaddling your baby with their arms by their sides mimics the snug feeling of the womb and reduces the chance of the Moro reflex waking them mid-sleep.
It is important to stop swaddling the arms in as soon as your baby shows any signs of rolling, to keep them safe. At that point, transition to a baby sleeping bag or sleep sack so they stay warm and comfortable. For safe sleep guidance, see Red Nose Australia.
Settling to Sleep
You may have heard the advice to put your baby down drowsy but awake. In the early weeks this does not always work, and the cycle of repeatedly picking up and laying down a baby who wakes on contact with the bassinet can lead to longer wake windows and overstimulation.
Instead, try placing your baby down awake and using hands-on touch and gentle shushing to help them transition to sleep. As they become more comfortable falling asleep in their bassinet with your support, you can gradually try putting them down a little more awake and see whether they can drift off with less assistance.
Building Flexible Sleep Associations
Allow your baby to fall asleep in different ways with different caregivers. Whether it is feeding, rocking, bouncing or patting, regularly practise having another caregiver do the settling as well. This prevents a strong attachment to one single method and means both parents retain some flexibility when needed.
Building healthy sleep habits in these first six weeks supports your baby's wellbeing and helps you manage the demands of early parenthood with greater confidence. Focus on a dark, calm sleep space, consistent cues like white noise, safe swaddling and realistic expectations about how newborn sleep works.
Written by Melissa, an internationally certified baby sleep consultant and founder of Baby Sleep Code, offering virtual one-on-one sleep consulting and educational resources including a Newborn Sleep Guide.
