The eleventh month is an exciting time in a baby’s development as they approach their first birthday. By this stage, many babies are highly mobile, curious, and eager to explore everything around them. They are into everything! You have to watch them like a hawk! They are learning better ways to communicate and how to get your attention. They are becoming more independent, and developing stronger social connections with caregivers and family members.
During the eleventh month, babies continue strengthening their physical abilities while improving cognitive, social, and communication skills. Many babies are crawling all over the place and getting into everything, pulling up to stand, cruising along furniture, and some may even begin taking their first independent steps. Their personalities are also uniquely developing as they express preferences, emotions, and curiosity about everything around them. They are not yet mature enough to understand their emotions, so temper tantrums may start around this time.
Although every baby develops at their own pace, there are several milestones commonly seen around eleven months of age. The following checklist outlines typical developmental milestones across cognitive, physical, social, communication, sensory, sleep, and feeding areas.
Cognitive Developmental Milestones
Cognitive development focuses on how babies think, learn, and understand their surroundings. By eleven months, babies are much more aware of how objects and people interact and are beginning to solve simple problems. You can see the wheels turning in their little heads as they start figuring things out. They will repeat things over and over and over.
Common cognitive milestones at eleven months:
* Shows strong curiosity about objects and people
* Searches actively for hidden or dropped objects
* Clearly understands object permanence
* Explores toys in different ways such as shaking, banging, or throwing
* Experiments with cause-and-effect actions
* Watches how objects move and reacts with interest
* Recognizes familiar people, toys, and everyday items
* Begins solving simple problems, such as moving obstacles to reach a toy
* Anticipates familiar routines like meals, naps, or bath time
* Demonstrates longer attention spans during play
Babies learn through exploration, repetition, and experimentation during this stage.
Physical Development Milestones
Physical development during the eleventh month focuses on balance, strength, and coordination as babies prepare for walking.
Typical physical milestones include:
* Crawls quickly and confidently
* Pulls up to stand using furniture or objects
* Cruises along furniture while holding on
* Moves smoothly between sitting, crawling, and standing
* Stands while holding onto support
* May briefly stand without support
* May take a few independent steps
* Climbs onto low furniture or steps
* Reaches for objects while standing
* Shows improved balance and coordination
These physical abilities help babies gain confidence in movement as they prepare to walk independently.
Fine Motor Skill Milestones
Fine motor skills continue developing as babies gain better control over their fingers and hands.
Common fine motor milestones include:
* Uses a strong “pincer grasp” to pick up small objects, be it toys or small pieces of paper
* Picks up small pieces of food independently
* Transfers objects easily between hands
* Releases objects intentionally
* Points at objects or people of interest
* Places objects into containers
* Removes objects from containers
* Turns pages in board books with assistance
* Bangs toys together during play
* Attempts self-feeding using fingers
These hand movements support exploration and growing independence.
Social and Emotional Milestones
Eleven month old babies become more expressive emotionally and develop stronger social bonds with caregivers, Moms and Dads, siblings and grandparents.
Typical social and emotional milestones include:⅙
* Shows strong attachment to parents or primary caregivers
* May display separation anxiety when caregivers/parents leave
* Demonstrates stranger anxiety around unfamiliar people
* Enjoys interactive play with family members
* Laughs, smiles, and shows excitement during play
* Reaches for caregivers to be picked up
* Responds to emotional tones in voices
* Imitates facial expressions and gestures
* Shows frustration when unable to reach desired objects
* Shows affection by hugging or leaning toward caregivers
These emotional connections help babies develop trust and confidence.
Communication and Verbal Milestones
Communication skills expand rapidly during the eleventh month. Babies are learning how to combine sounds, gestures, and expressions to communicate their needs.
Common communication milestones include:
* Babbles with repeated syllables like “ba-ba,” “da-da,” or “ma-ma”. They may start trying to imitate one syllable words such as dog, cat, ball
* Responds consistently to their name
* Understands simple words such as “no,” “bye-bye,” “milk,” or “ball”
* Uses gestures like waving, pointing, or reaching
* Imitates sounds made by caregivers and others around them
* Uses voice to express excitement, frustration, or happiness
* Makes sounds to gain attention
* Enjoys listening to speech, songs, and stories
* May attempt to say simple words like “mama” or “dada”
* Responds to simple requests such as “come here” or “give it to me”
Frequent talking, reading, and singing to babies helps support strong language development.
Sensory Development Milestones
Sensory development continues helping babies explore and understand the world around them.
Typical sensory milestones:
* Recognizes familiar faces easily
* Tracks moving objects smoothly with eyes
* Turns quickly toward sounds or voices
* Shows interest in colorful toys and patterns
* Explores objects through touch and taste
* Reacts to different textures during play
* Watches people’s facial expressions closely
* Enjoys music and rhythmic sounds
* Recognizes familiar voices even when not visible
* Shows curiosity about new environments
These sensory experiences stimulate brain growth and learning.
Play and Learning Milestones
Play becomes increasingly interactive and imaginative during the eleventh month.
Common play milestones include:
* Enjoys games like peek-a-boo and pat-a-cake
* Drops toys repeatedly to observe what happens
* Explores toys by shaking, banging, and throwing them
* Looks for toys that have been hidden
* Enjoys stacking or nesting toys
* Shows interest in picture books
* Attempts to imitate actions performed by others
* Plays with toys that make sounds or lights
* Experiments with pushing or pulling toys
* Shows excitement when favorite toys appear
Playtime continues to strengthen cognitive development and problem-solving abilities.
Sleep Patterns at 11 Months
Many babies have more predictable sleep routines by eleven months, especially if consistency has been a big part of their routine. Occasional sleep disruptions may still occur due to teething or growth spurts.
Typical sleep behaviors include:
* Sleeps about 12–15 hours per day total
* Usually takes 2 daytime naps
* May sleep 9–11 hours at night
* Some babies still wake once during the night
* Recognizes bedtime routines
* May experience temporary sleep disruptions during developmental changes
* Responds well to consistent bedtime schedules
A calming bedtime routine can help support healthy sleep habits.
Feeding and Nutrition at 11 Months
Breast milk or formula remains important during the eleventh month, although solid foods and finger foods make up a larger portion of a baby’s diet.
Breastfeeding
Breast milk continues providing valuable nutrients and immune support.
Breastfeeding milestones include:
* Nurses about 3–4 times per day
* Feeding sessions may be shorter than earlier months
* Breast milk still provides important nutrients
* Some babies nurse mostly in the morning and evening
* May nurse more during growth spurts
* Continues supporting immune health and hydration
Bottle Feeding (Formula)
Formula-fed babies generally follow similar feeding patterns.
Typical formula feeding patterns include:
* Drinks about 20–28 ounces of formula daily
* Usually feeds 3–4 times per day
* May drink from a sippy or training cup
* Feedings are usually spaced further apart than during earlier months
Solid Foods at 11 Months
By eleven months, babies usually eat three meals per day and may also enjoy small snacks.
Common foods for eleven-month-old babies include:
* Iron-fortified infant cereal
* Banana slices
* Avocado pieces
* Scrambled eggs
* Yogurt (plain, full-fat)
* Mashed sweet potatoes
* Soft cooked carrots
* Applesauce or soft apple pieces
* Soft pear slices
* Mashed peas
Additional foods that may be introduced include:
* Shredded chicken or turkey
* Small pieces of soft cheese
* Cooked beans or lentils
* Soft tofu
* Soft cooked pasta
* Mashed potatoes
* Soft cooked broccoli
* Soft cooked vegetables such as squash, carrots or potatoes
* Banana slices
* Small avocado cubes
* Soft fruit pieces
* Soft steamed vegetables
* Small pasta pieces
* Teething crackers
All foods should be cut into small pieces to reduce choking risk.
11 Month Growth Expectations
Babies continue growing steadily as they approach their first birthday.
Typical growth milestones include:
* Average weight ranges from 19–24 pounds
* Average length ranges from 28–31 inches
* Clothing sizes are often 9–12 months. Clothing sizes can be larger, 12 -18 months, especially for boys
* Head circumference continues increasing with brain development
* Babies typically follow consistent patterns on pediatric growth charts
Routine pediatric visits help ensure healthy growth.
Signs of Healthy Development
Most eleven month old babies demonstrate several signs of healthy development.
Healthy developmental signs include:
* Shows curiosity about immediate surroundings
* Responds to voices and sounds
* Moves independently through crawling or cruising
* Reaches for and explores toys
* Laughs and smiles during interaction
* Babbles frequently and experiments with sounds
* Shows emotional responses like excitement or frustration
* Engages socially with caregivers and family
These behaviors indicate active learning and development.
When to Talk to a Pediatrician
Although babies develop at different rates, parents may consider consulting a pediatrician if an eleven month old:
* Cannot sit without support
* Does not crawl or attempt to move
* Shows little interest in toys or interaction
* Does not respond to their name
* Does not babble or attempt communication
* Cannot bear weight on legs when supported
* Appears unusually stiff or floppy
Early guidance from a pediatrician can help identify developmental concerns and provide support if needed.
Final Thoughts
The eleventh month is a remarkable stage of growth and development as babies approach their first birthday. During this time, babies are becoming extremely mobile on their own, more communicative, and more socially interactive. Many are cruising along furniture, experimenting with new sounds, and enjoying a wider variety of foods.
While milestone checklists can help guide expectations, every baby develops at their own pace. Some babies may begin walking earlier, while others focus more on communication or fine motor skills. All these different beginnings are normal.
Providing a safe environment, encouraging play and exploration, offering nutritious foods, and spending time interacting with your baby will support healthy development during this exciting stage of infancy.