At 4 weeks old, your baby is slowly becoming more awake, expressive and aware of the world around them. Even though much of life still revolves around feeding, sleeping and cuddling, many parents begin noticing tiny changes almost every day.
You may find yourself recognising your baby's cues more easily now - the sounds that mean hunger, the movements that signal tiredness or the brief quiet moments when your baby studies your face carefully.
The newborn stage can still feel intense and unpredictable, especially with broken sleep and constant feeding, but week four often brings a growing sense that you and your baby are beginning to learn each other.
Track your baby's exact age in days, weeks and months with the baby age calculator. Week 4 follows 3 weeks old and comes before 1 month old.
At four weeks old, most babies are still waking frequently for feeds and sleeping for much of the day, but some become more alert during short wake windows.
Your baby may spend more time observing faces, reacting to voices, stretching, kicking and becoming increasingly expressive during calm moments. Some babies also become fussier during the evenings, especially during growth spurts or periods of overstimulation.
Many newborns continue wanting frequent closeness and contact naps during week four. Wanting to be held often is biologically normal and helps babies feel calm and secure.
Although routines may still feel inconsistent, many parents begin feeling slightly more familiar with newborn life by this stage - even if some days still feel exhausting or emotional.
Your baby's brain, nervous system and sensory awareness continue developing rapidly during week four. Everyday experiences such as feeding, cuddling, movement, eye contact and hearing your voice all help support emotional security and early brain development.
Your baby may begin moving slightly more smoothly compared with the first weeks after birth. Jerky newborn movements and reflexes are still very normal, but some babies start showing brief moments of improved head control during tummy time or while resting against a caregiver's chest.
You may notice stronger kicking, stretching, grasping fingers tightly and more active arm and leg movements during alert periods.
At four weeks old, babies are often increasingly interested in faces, voices and movement. Vision remains blurry, but many babies can briefly focus on faces and nearby objects around 20–30 cm away.
Your baby may quietly watch your face, calm when hearing familiar voices or react differently to light, movement and sounds compared with previous weeks.
Crying remains your baby's main form of communication, but some babies begin making more small cooing sounds, grunts or quieter vocal noises during calm moments.
Newborn reflexes such as rooting, sucking, grasping and the Moro or startle reflex are still very noticeable during week four. These reflexes continue helping your baby feed, respond to stimulation and adjust to life outside the womb.
Everyday interaction - talking, cuddling, responding to cries and making eye contact - helps support your baby's emotional and social development.
Most 4-week-old babies still feed frequently, often every 2–3 hours including overnight. Some babies may begin spacing feeds slightly further apart, while others continue feeding very often, especially during growth spurts.
Cluster feeding can still happen during week four, particularly in the evenings. Your baby may want to feed repeatedly over several hours and seem difficult to settle unless being held close.
Common hunger cues include rooting, sucking motions, bringing hands to the mouth, restlessness and increased alertness. Crying usually remains a later hunger cue.
Whether breastfeeding, formula feeding or combination feeding, feeding often starts feeling slightly more familiar around this stage - although many parents still experience challenges, questions or moments of uncertainty.
Steady weight gain, regular wet and dirty nappies and periods of calm after feeding are usually reassuring signs that feeding is going well. If you have concerns about feeding or weight gain, speak with your midwife, health visitor, paediatrician or lactation consultant.
Most newborns still sleep around 14–17 hours within a 24-hour period, although sleep continues happening in short stretches rather than long overnight blocks.
Your baby may begin having slightly longer wake windows between naps, but frequent night waking remains completely normal because newborn stomachs are still very small.
Some babies become fussier or harder to settle during the evenings around this age. This does not mean you are doing something wrong or creating bad habits.
Safe sleep remains extremely important. Always place your baby on their back to sleep, on a firm and flat sleep surface free from loose blankets, pillows, bumpers and soft toys.
Many babies still prefer contact naps and sleeping close to caregivers. Your presence continues helping your baby feel calm, safe and emotionally regulated.
By week four, many families begin settling more into daily life with a newborn, but emotional and physical adjustment are still ongoing. Broken sleep, feeding demands and the constant responsibility of caring for a baby can still feel exhausting.
Some parents begin feeling more confident around this stage, while others feel emotionally drained or overwhelmed. Both experiences are common during the newborn period.
Bonding usually grows through repeated everyday moments - feeding, cuddling, comforting, changing nappies, responding to cries and simply spending time together.
Skin-to-skin contact, gentle touch, eye contact and responsive caregiving all continue supporting your baby's emotional development and sense of security. Your baby mainly needs closeness, nourishment, comfort and love.
Contact your midwife, health visitor, paediatrician, GP or local urgent service if your baby develops a fever, has difficulty breathing, refuses feeds repeatedly, has very few wet nappies, vomits persistently, develops worsening jaundice, appears unusually floppy or weak or becomes difficult to wake.
Parents often notice subtle changes before they can fully explain them. Trusting your instincts and seeking support early is always appropriate.
Week four may still feel tiring and emotional, but there are often more moments of connection now too - longer eye contact, calmer cuddles, familiar routines and the growing feeling that your baby already knows you deeply.
You are still learning, and so is your baby. There is no need to do everything perfectly.
Your baby is not looking for perfection. They are looking for comfort, safety, responsiveness and love - every single day.
A 4 week old baby is close to 1 month old, but calendar months and weeks do not match perfectly. Some families use 4 weeks, while others use the same date in the next month to mark 1 month.
Many 4 week old babies still feed every 2-3 hours, including overnight. Some begin spacing feeds slightly, while others continue feeding very often, especially during growth spurts.
Most 4 week old babies still sleep around 14-17 hours in 24 hours, usually in short stretches. Longer wake windows may begin, but frequent waking is still normal.
At 4 weeks, your baby may have longer quiet alert periods, look more at faces, respond to familiar voices, make small cooing sounds, move more smoothly and briefly lift the head during supervised tummy time.
Seek medical advice if your baby has a fever, breathing difficulty, repeated feed refusal, very few wet nappies or diapers, persistent vomiting, worsening jaundice, unusual limpness or is hard to wake.
