5-Month-Old Baby Development - Motor Skills, Sleep, and Nutrition
This article is approved by Çiğdem İrem İleri
Published: 11 March, 2026
Updated: 13 March, 2026

5-month-old baby development marks a period where your baby's movement, communication, and desire to explore increase rapidly. They now focus more on their surroundings, use their hands more consciously, and give vocal responses. During this period, many questions such as "Is it time to start complementary foods?", "How much should they sleep?", or "What kind of games should be played?" may cross your mind. This guide, where we answer all these questions with expert content, is an ideal resource for you to learn what to expect in the 5th month.
You can also check out our 4-month-old baby development article to examine the developmental steps of the previous month.
How Is 5-Month-Old Baby Development?
Physical Development Characteristics
Head control becomes much stronger.
They can push off with their legs.
They can stay on their tummy for longer periods.
Mental and Sensory Development
The ability to recognize objects increases.
They begin to understand cause-and-effect relationships (Example: Shaking a rattle produces sound).
Eye tracking improves: They can focus on more distant objects.
Social and Emotional Skills
They smile more at people they recognize and make more sounds.
They may react by crying when faced with a lack of attention.
They recognize their mother or father by their voice.
Language Development
They repeat syllables like "ba", "da", and "ma."
They begin to imitate you.
They make changes in tone of voice, making sounds as if they are talking.
Vision and Hearing Development
They begin to distinguish colors (especially red and yellow tones).
They can even notice soft sounds.
They may turn their head when their name is called.

What Can a 5-Month-Old Baby Do?
Motor Skills
Conscious Reaching and Developing Grip
Can reach for objects with both hands.
Everything goes straight to the mouth at this stage.
Can pass a toy from one hand to the other.
Interaction with the Environment
Distinguishes family members.
May give different reactions to strangers.
Shows interest in their own voice and repeats the sounds they make.
Supportive Exercises
Tummy time should be continued.
Offering toys from different directions supports motor development.
Playing games in front of a mirror can be beneficial.
Using Both Hands Together
Joins their hands at the midline of their body.
Can use both hands simultaneously.
Begins to explore their fingers.
5-Month-Old Baby Nutrition
How Often Should They Be Fed?
A 5-month-old baby is usually fed 5–6 times a day at intervals of 4–6 hours. However, this interval may vary according to the baby's weight gain and general health status.
How Often Should They Be Fed at Night?
There may be babies who sleep 6–8 hours uninterrupted throughout the night. If weight gain is sufficient and your doctor does not suggest otherwise, nighttime feedings can be reduced.
How to Tell if the Baby Is Full?
Releasing the breast after nursing
Relaxation and loosening up
5–6 wet diapers daily
Weekly weight gain of 70–130 grams
A happy and active mood.
Use of Breast Milk and Formula
Breast milk is still the most ideal source of nutrition.
In case of milk insufficiency, formula supplementation can be done under a doctor's supervision.
How Much Breast Milk Does a 5-Month-Old Baby Need?
They can take between 120–180 ml of milk at each meal.
Total daily milk needs can vary between 700–1000 ml.
5-Month-Old Baby Weight, Height, and Head Circumference
How Much Should a 5-Month-Old Baby Weigh?
Gender | Average Weight |
Boy | 7.0 – 8.0 kg |
Girl | 6.4 – 7.4 kg |
How Tall Should a 5-Month-Old Baby Be?
Gender | Average Height |
Boy | 64 – 68 cm |
Girl | 62 – 66 cm |
What Should the Head Circumference of a 5-Month-Old Baby Be?
Gender | Average Head Circumference |
Boy | 42.6 cm |
Girl | 41.5 cm |
5-Month-Old Baby Sleep Pattern
Average Daily Sleep Duration
A total of 13–15 hours of sleep is considered normal. The majority of this duration is spent in nighttime sleep.
Night Sleep Routine
They can sleep 6–9 hours uninterrupted at night.
Taking 2–3 daytime naps (30–90 minutes each) is ideal.
5-Month-Old Baby Health Check-ups
5-Month-Old Baby Doctor Check-up
Weight, height, and head circumference measurements.
Monitoring of developmental progress.
Check-up of gums, eyes, and ears.
Evaluation of vitamin D and iron supplements.

5-Month-Old Baby Care
Daily Care Routine
Diaper changes, face and eye cleaning.
Skin care with moisturizers.
Burping after every feeding.
Ear and General Hygiene Care
The ear is cleaned only from the outside.
Cotton swabs should not be used.
Bathing, Gas Relief, and Skin Care
Bathing 2–3 times a week is sufficient.
Gas massages can be performed after feeding.
Seasonally appropriate skin care products should be preferred.
Nail Trimming and Oral Hygiene
Nails can be trimmed once a week.
If there is gum itching, the inside of the mouth can be wiped with a clean, damp cloth.
How to Play with a 5-Month-Old Baby?
Suitable Toys for 5-Month-Old Babies
Colorful rattles
Soft teething toys
Books with mirrors
Games to Play with 5-Month-Old Babies
Looking in the mirror together
Simple "peek-a-boo" games
Exercising by holding their hands and talking to them
Object tracking games
Information About 5-Month-Old Baby Development
What can be done for gum itching in a 5-month-old baby?
Cold teethers can be used.
Gentle gum massage can be done with a finger.
If there are symptoms such as fever, vomiting, or diarrhea due to teething, a doctor's advice should be sought.
What sounds does a 5-month-old baby make?
Repeating syllables like "ba", "da", and "ma"
Testing out different pitches
Playing with their own voice
During this period, "responding" as if they are talking indicates that their communication skills are developing.

Conclusion
5-month-old baby development is a fun and learning-filled period where both motor skills and social-emotional responses strengthen. Your baby now follows their environment more consciously, participates more in games, and builds a stronger bond with you. During this process, it is very important to support their development by establishing a routine between play, sleep, and nutrition.
You can also gain detailed information about the next steps of this process by checking out our 6-month-old baby development article.
Yuppo is always by your side so you can track your baby's development step-by-step and proceed with reliable information. By downloading our mobile application, you can instantly access development guides, care tips, and expert content.
Frequently Asked Questions (FAQ)
Can a 5-month-old baby start to sit?
Most 5-month-old babies cannot sit fully on their own, but they can maintain a sitting position for short periods with support. During this month, babies begin to strengthen their back muscles, and head control is generally developed to a great extent. They can keep their heads steady, especially when held in an upright position. This forms the first steps of the muscle and balance development necessary for sitting in the future.
Some babies can sit for short periods while supported by pillows, but this situation may vary for every baby. Forcing a baby to sit early is not recommended for spinal development. Instead, you can ensure they strengthen their back and abdominal muscles by increasing the time your baby spends on their tummy.
You can try “supported sitting” sessions for a few minutes a day under supervision, but you should avoid keeping your baby in an upright position for long periods before their head and lower back control is fully established.
Does a 5-month-old baby sleep uninterrupted throughout the night?
At this age, some babies can sleep up to 6 hours uninterrupted; however, they are not expected to sleep through the night without waking at all. Sleep patterns vary from baby to baby and are still in the development process. On average, a 5-month-old baby sleeps a total of 14–16 hours a day. About 10–11 hours of this is nighttime sleep, while the rest consists of 2–3 short naps during the day.
However, during this period, signs of growth spurts, teething preparation, or the beginning of separation anxiety may be seen in babies. Such situations can increase nighttime wakings.
You can apply these tips for your baby to have higher quality night sleep:
Create an evening routine (bath, massage, dim light).
Avoid excessive stimuli before sleep.
Ensure they get enough physical activity and daylight during the day.
Instead of intervening immediately when they wake up, observe for a few minutes to see if they can fall back asleep on their own.
Remember: Night feedings may still be necessary during this period. If your baby is gaining weight healthily and the doctor does not suggest otherwise, night feeding intervals may lengthen for some babies.
Can a 5-month-old baby start complementary foods?
No, for healthy and full-term babies, the time to start complementary foods is usually the end of the 6th month. However, in some special cases (e.g., allergies, certain metabolic needs, or upon doctor's recommendation), a slow transition to complementary foods may be considered at the end of the 5th month. Still, you should never implement this decision without consulting your doctor.
Some signs that your baby is ready for complementary foods include:
If they can hold their head upright and sit with support,
If they show interest or reach for a spoon,
If the tongue-thrust reflex has decreased (meaning they can keep the food in their mouth instead of pushing it out with their tongue).
Important: Even if some of these signs are seen in the 5th month, the development of the digestive system may not be complete yet. Therefore, starting complementary foods early can increase the risk of allergies and intestinal problems.
For breastfeeding mothers: In the 5th month, breast milk is still your baby's primary source of nutrition. Exclusive breastfeeding (or formula) should be continued for the first 6 months. This is critical for both the immune system and brain development.
Dr. Çiğdem İrem İleri
Developmental Psychologist
After graduating from Koç University in 2019 with a double major in Psychology and Media and Visual Arts, alongside track programs in Design, Gender Studies, and Media and Management, Çiğdem İrem İleri began her integrated doctoral studies in Developmental Psychology at the same institution that same year.