6-Month-Old Baby Guide: Solids, Sleep, Milestones & the Well Visit

What development can look like at 6 months

By the end of this month, many babies recognize familiar people, laugh, trade sounds with you, reach for a wanted toy and explore objects by mouth. During floor play, your baby may push up on straight arms, roll from tummy to back and use their hands for balance while sitting with support.

These are signposts, not a test to finish on one date. Independent sitting has a broad normal window, and crawling is not a 6-month requirement. Look for skills accumulating over time and use corrected age if your baby was born early.

Starting solids with your pediatrician’s plan

CDC and American Academy of Pediatrics guidance places the transition at about six months, when your baby can control their head, sit upright with support and swallow food. Before you begin, ask your pediatrician to confirm readiness and help shape the first feeding plan. That conversation matters especially after an early birth, poor growth, swallowing difficulty, a significant medical condition or any known food allergy.

Early meals are practice, not a portion test. Breast milk or iron-fortified formula remains central while tastes, amount and texture grow gradually. CDC guidance does not require one first-food order, but a list on this page is not a personal menu. Choose foods, preparation and pace with your pediatrician’s advice and your baby’s hunger and fullness cues.

Iron and allergens: use an individual plan

Iron needs depend on milk source, birth history and growth. Ask the pediatrician whether food alone is appropriate or whether a supplement is needed; use only the product and dose recommended for your baby. Meat, beans, lentils, egg and iron-fortified cereal are examples to discuss, not a prescription for every child.

CDC guidance says potentially allergenic foods can be introduced alongside other foods and specifically calls for pediatric guidance before peanut when a baby has severe eczema or egg allergy. Do not turn that general guidance into a home trial schedule on your own. Discuss which allergens to introduce, in what order and under what conditions with your pediatrician. A known allergy, previous immediate reaction or significant eczema needs a personal plan; never retry a food that caused a reaction without medical direction. Whole nuts and thick spoonfuls of nut butter are also choking hazards.

What to expect at the 6-month well visit

The visit usually brings growth measurements, a physical exam and a conversation about development, feeding, sleep, oral health and safety. Several vaccine series may have a 6-month dose depending on the product and earlier dates. Flu vaccination begins at 6 months; current COVID-19 guidance and the exact vaccine set should be checked against your child’s record and the current CDC schedule.

A week or two of real sleep, feeding, diaper, medication and growth history is more useful than trying to remember an average in the exam room. Bring patterns, questions and any change that has been worrying you.

How much sleep does a 6-month-old need?

For infants 4–12 months, 12–16 total hours in 24 hours, including naps, is a broad reference range. Official guidance does not prescribe one nap count or a universal 2–3 hour wake window for every 6-month-old. Night feeds can still be normal, and beginning solids does not make sleeping through more likely.

Nerumi turns that broad guidance into something personal. It learns from your baby’s actual sleep history to estimate individual awake intervals and the next likely sleep, then adapts as the rhythm changes. You get a useful prediction based on your baby—not a generic schedule copied from the internet.

Teething, growth, safety and when to call

A first tooth may appear around this age, but earlier or later can be normal. Drooling, chewing and tender gums fit teething; true fever or diarrhea deserves another explanation. Growth is judged by the direction of weight, length and head circumference over time, not by a rule that every baby must double birth weight on a precise date.

Call the pediatrician for poor head control, little response to sound or faces, persistent one-sided movement, repeated swallowing difficulty or any loss of a skill. Not sitting independently or crawling at 6 months is not a red flag by itself. Call 911 for trouble breathing, blue or gray color, a seizure, unusual difficulty waking or facial or tongue swelling after food; dehydration also needs urgent medical care.

Vaccinations

United States

• DTaPDose 3
• HibDose 3Depends on product or clinician
• PneumococcalDose 3
• RotavirusDose 3Depends on product or clinician
• Hepatitis BDose 3Depends on product or clinician
• Polio (IPV)Dose 3
• FluDose 1Depends on product or clinician

For babies born to mothers who tested negative for hepatitis B, vaccine timing is a shared decision with the clinician; if the birth dose is not given, the current schedule shows the first dose at 2 months. If the mother tested positive or her status is unknown, vaccination at birth and, when indicated, hepatitis B immune globulin are time-critical and follow a separate high-risk plan. Use the birth record and the baby's clinician-led plan.

This schedule is for reference. Which vaccine your child needs and when is your doctor's call.

Schedule: U.S. HHS / CDC · US-HHS-2026-01 · reviewed 2026-08-25