Week 52 old
Week 52 marks your baby's first birthday and the 12-month checkup. Here's what's typical for feeding, sleep, and development around now.
In short
At week 52 (12 months), many babies eat three meals plus snacks, may begin transitioning to whole milk, and sleep about 11-14 hours total with one or two naps. The 12-month checkup is a key milestone check.
🍼 Feeding
Around now, many babies eat 3 meals plus 1-2 snacks of varied table foods, with about 16-24 oz/day of breast milk or formula. At 12 months your pediatrician may okay starting whole cow's milk and offering water in an open or straw cup.
😴 Sleep
Typically 11-14 hours total per day, usually 10-12 hours overnight plus 1-2 naps (many babies are still on two naps now, with some moving toward one). Keep the crib bare: skip pillows, blankets, bumpers, and soft toys. These aren't safe just because your baby turned one — pediatricians advise keeping loose bedding out of the sleep space until your child moves to a bed.
What's happening this week
- •Around this age, many babies pull to stand, cruise along furniture, and some take a few independent steps — though plenty walk later, which is normal.
- •Many one-year-olds use a pincer grasp to pick up small bits of food and may wave, clap, or point.
- •Around now, lots of babies say one or two words like 'mama' or 'dada' with meaning and understand simple requests.
- •Separation anxiety and stranger wariness often peak around this age — a sign of healthy attachment.
Milestones to keep in mind
- ✓By the 12-month checkup, many babies pull to stand and cruise; some take first steps, but walking anytime up to about 18 months is within the typical range.
- ✓Around the 12-month checkpoint, many babies wave bye-bye, bang two objects together, and look for hidden objects.
- ✓By 12 months, many babies say 'mama' or 'dada' specifically and may use one or two other words.
- ✓The 12-month visit usually includes a developmental check and vaccines — a good time to raise any questions.
Growth
💡 Tip for this week
Offer soft, pea-sized pieces of a variety of foods and let your baby self-feed; avoid choking hazards like whole grapes, nuts, popcorn, and chunks of hard food.
⚠️ When to call your pediatrician
Call your pediatrician if your baby isn't bearing any weight on the legs, has lost skills they once had, makes no babbling or gestures, isn't gaining weight, or has a fever of 102°F or higher. Trust your instincts and raise any concern at the 12-month visit.
Frequently asked
Can my baby switch to cow's milk at 12 months?
Many pediatricians say whole cow's milk is fine to introduce around 12 months, often about 16-24 oz a day, alongside solid meals. Confirm timing with your pediatrician, especially if your baby has allergies.
Is it normal that my 1-year-old isn't walking yet?
Yes. Many babies aren't walking at 12 months, and independent steps anytime up to roughly 18 months are within the typical range. Cruising along furniture is a good sign progress is on track.
Why is my baby eating less at 12 months?
Growth slows in the second year, so appetite often dips and gets pickier — this is common. Keep offering a variety of healthy foods and let your baby decide how much to eat; mention it at the checkup if you're worried.
Looking for the bigger picture? See the month 12 overview →
General guidance, not medical advice. Every baby develops at their own pace — talk to your pediatrician with any concerns.