Baby development and growth at month 8

Time is flying by, and your little one is officially 8 months old! Can you believe how much they’ve changed in just a few months? From rolling over to sitting up and possibly even pulling up to stand, your baby is making incredible strides in their development.

At month 8, your baby is more curious, active, and engaged than ever. They’re refining their motor skills, experimenting with sounds, and showing a growing interest in exploring their surroundings. But along with these exciting milestones, you might also notice some challenges, like separation anxiety, sleep disruptions, or a sudden dislike for certain foods. Don’t worry; it’s all part of the journey!

In this guide, we’ll walk through your baby’s growth, developmental milestones, sleep patterns, feeding needs, and ways to support their progress this month. Let’s dive into what month 8 has in store for you and your little one!

What to expect?

Every baby develops at their own pace, but here’s a sneak peek of what you might notice at 8 months:

Physical development: crawling, standing, and non-stop movement!

Your baby is becoming a little explorer at 8 months old! Their bodies are getting stronger, and they’re starting to move with more purpose. While not all babies crawl at this stage, you’ll likely see some form of mobility—whether it’s crawling, scooting, rolling, or even pulling up to stand.

What physical milestones can you expect?

  • Crawling or preparing to crawl: Some babies start crawling now, while others develop their own way of getting around (scooting on their belly, rolling, or army crawling).
  • Sitting independently: Your baby can likely sit up unassisted for longer periods, using their hands for balance.
  • Standing with support: Holding onto furniture (or your hands!), your baby may start pulling up to stand.
  • Better balance and coordination: Reaching, grabbing, and transferring objects between hands is becoming easier.
  • More energy: Babies at this stage love to move, so expect lots of squirming, kicking, and attempts to explore!

How to support their physical growth

  • Encourage crawling: Place toys just out of reach to motivate movement.
  • Provide safe spaces: Baby-proof your home to allow exploration in a safe environment.
  • Support standing practice: Let them hold onto a low, sturdy surface like a coffee table to practice pulling up.
  • Give them floor time: Keep swings, jumpers, or seat time to a minimum—floor play is the best way for babies to develop strength!

Friendly reminder: If your baby isn’t crawling yet, don’t worry! Keep offering opportunities for movement and floor play, and they’ll get there in their own time. Many babies skip traditional hands-and-knees crawling [1] and develop just fine. Some prefer to bottom shuffle, army crawl, roll, or even go straight to walking. 

Learn more: 9-Month-Old Baby: Development and Milestones to get a sneak peek at what’s coming next as your baby continues to grow and move!

With all this movement, your baby is also taking in more of their environment than ever before. Let’s explore how their cognitive development is progressing.

Cognitive development: Understanding cause and effect

At month 8, your baby’s brain is working in overdrive! They’re figuring out how things work, exploring new concepts, and recognizing patterns.

Cognitive milestones this month

  • Object permanence: Your baby understands that things exist even when they can’t see them (hello, peek-a-boo!).
  • Recognizing cause and effect: At this stage, your child is beginning to understand cause and effect. You might notice them repeatedly dropping a toy from their high chair not just by accident but to see how you react. This playful 'experiment' helps them learn that their actions can influence the world around them.
  • More curiosity: Everything is a mystery to be solved, from opening drawers to flipping light switches.
  • Improved memory: Your baby remembers familiar faces, objects, and routines.
  • Increased communication skills: They’re mimicking sounds and trying to repeat familiar noises.

Ways to boost their cognitive growth

  • Play peek-a-boo: This classic game strengthens their understanding of object permanence.
  • Offer cause-and-effect toys: Think of busy boards, stacking rings, and pop-up toys that respond when pressed or pulled.
  • Talk to your baby: Narrate your day, describe what you’re doing, and repeat familiar words.
  • Encourage problem-solving: Let them figure out how to grab a toy just out of reach.

Discover Lullaby Music for Babies to Sleep Instantly to support cognitive and auditory development through calming sounds.

As their cognitive skills grow, their emotions also become more complex. Let’s take a look at their social and emotional development.

Social & emotional development: Attachment and separation anxiety

Your baby loves you, and at this stage, they don’t want to let you out of sight! Around month 8, many babies start experiencing separation anxiety. They now understand that you exist even when you leave the room, due to the development of object permanence. This can lead to some overstimulation and need for closeness.

What you might notice

  • Stranger anxiety: Your baby may be wary of new faces and prefer familiar caregivers.
  • Stronger attachment: They show excitement when you return and may get restless when you leave.
  • More engagement: Your baby enjoys interactive games, mimicking your facial expressions, and babbling in response.

How to comfort your baby

  • Practice short separations: Leave the room for a few moments and return to show them you always come back.
  • Introduce a comfort item: A soft blanket or stuffed toy can provide reassurance.
  • Stay calm and positive: When leaving, keep goodbyes short and sweet—a long farewell can make it harder!

Parent-to-Parent insight: Separation anxiety[2] is completely normal, and it’s actually a sign of a healthy attachment. With time and consistency, your baby will become more confident when you’re out of sight!

Let’s explore how your baby’s growing curiosity extends to mealtime! This is an exciting stage where they begin to experience new flavors and textures, laying the groundwork for a lifetime of healthy eating habits.

Feeding & nutrition growth: exploring new flavors and textures

At 8 months, your baby is getting more adventurous with food! This is an exciting time when they start experimenting with new tastes, textures, and even self-feeding. Their digestive system is maturing, and they need a variety of nutrients to support their rapid growth.

What changes in feeding and nutrition this month?

  • Eating more solids: By now, your baby might be eating two to three solid meals a day, alongside breast milk or formula.
  • Improved chewing skills: Even without teeth, your baby can handle soft, mashed, or finely chopped foods.
  • Developing pincer grasp: They can now pick up small pieces of food between their thumb and forefinger—perfect for self-feeding!
  • Stronger food preferences: Your baby may show clear likes and dislikes. Keep offering a variety of flavors and textures to prevent picky eating later.
  • Drinking from a cup: Some babies may start sipping water from a sippy cup at this stage.

What to feed your 8-month-old?

At this age, your baby needs a variety of nutrient-dense foods to support their growth. Here’s a balanced guide:

Protein sources:

✔ Mashed lentils, soft tofu, scrambled eggs, finely shredded chicken or turkey.

Fruits & vegetables:

✔ Cooked sweet potatoes, carrots, peas, avocado, banana, apple, and pear (soft-cooked or mashed).

Iron-rich foods:

✔ Fortified cereals, pureed meats, mashed beans, and dark leafy greens.

Friendly reminder: Introducing your 8-month-old to leafy greens like spinach, kale, and Swiss chard can be both fun and nutritious! To make these veggies baby-friendly (these are hard to eat without molars), cook them thoroughly until soft, finely chop or purée, and serve in age-appropriate sizes to prevent choking. Always supervise mealtime to ensure safety[3].

Dairy:

✔ Full-fat yogurt, soft cheese (cottage cheese).

Grains:

✔ Oats, whole wheat pasta, soft rice, quinoa.

Feeding tips to support growth

  • Let them explore: Encourage self-feeding through baby-led weaning[4] by offering soft, safe finger foods like banana slices, avocado pieces, or scrambled eggs. This approach helps babies develop independence, hand-eye coordination, and a healthy relationship with food right from the start.
  • Offer a variety of textures: Move beyond purees. Introduce mashed, minced, or chopped foods.
  • Follow baby’s cues: Watch for hunger and fullness signs (leaning forward for more or turning away when full).
  • Stay hydrated: Continue breast milk or formula as the primary source of nutrition, and introduce small amounts of water in a sippy cup.

What to avoid?

  • Honey or maple syrup (risk of botulism)
  • Choking hazards like whole nuts, large chunks of fruit, or hard vegetables
  • Salt and sugar (babies don’t need added seasoning)
  • Cow’s milk as a primary drink before 12 months

As they grow more emotionally connected to you, their sleep patterns might also be affected. Let’s see how sleep is changing this month.

Sleep patterns: a bit of regression?

With all these exciting new skills, sleep can be a bit unpredictable at 8 months. You might notice your baby waking up more often or fighting naps—this is called the 8-month sleep regression.

What’s causing sleep disruptions?

  • Increased mobility (practicing crawling, standing)
  • Separation anxiety at bedtime
  • Teething discomfort
  • Changes in nap schedules

How to get sleep back on track

  • Stick to a bedtime routine: Keep nighttime calm and predictable with a warm bath, lullabies, and dim lighting.
  • Encourage self-soothing: Let them try to settle on their own before rushing in.
  • Offer more daytime practice: Let them get plenty of movement during the day so they don’t feel the need to practice in the crib at night!

Read more: Struggling with night-waking and bedtime? Sleep regression: Why isn’t my baby sleeping anymore has helpful tips to navigate this phase!

Short & Sweet

At month 8, your baby is full of curiosity, movement, and new emotions! They’re gaining independence, refining their motor skills, and forming deeper attachments with you.

With all the sleep regressions, teething fussiness, and newfound mobility, things can feel overwhelming—but you’ve got this! Each milestone is a step toward greater confidence and ability, and your love and support are what help them thrive.

Want to take the guesswork out of baby sleep and routines? Happy Baby helps track milestones, predict nap times, and create a schedule that works for you. Try Happy Baby today and make sleep easier for the whole family!

Try now

FAQ - Everything else you should know

1. What if my baby isn’t pulling up to stand yet?

2. Why is my 8-month-old suddenly waking up at night again?

3. How can I help my baby get used to new foods?

4. Is separation anxiety normal at 8 months?

5. How much should my baby sleep at 8 months?

Sources

  1. Goodwin, C., PhD. (2022, March 12). The research behind the development of crawling—or not. Psychology Today. https://www.psychologytoday.com/us/blog/parenting-translator/202203/does-it-matter-if-your-child-skips-crawling#:~:text=Many%20babies%20skip%20crawling%20and,others%20go%20straight%20to%20walking.
  2. https://kidshealth.org/en/parents/sep-anxiety.html#:~:text=Around%20the%20first%20birthday%2C%20many,development%2C%20it%20can%20be%20unsettling.
  3. https://plantbasedjuniors.com/how-to-introduce-leafy-greens-to-babies/
  4. https://solidstarts.com/how-to-do-baby-led-weaning/
  5. Feeding your 8- to 12-Month-Old (for parents). (n.d.). https://kidshealth.org/en/parents/feed812m.html
  6. Baby development: your 8-Month-Old. (n.d.). WebMD. https://www.webmd.com/parenting/baby/baby-development-8-month-old