Week 11 old
Week 11: your baby is more alert and social, with longer awake stretches and bigger feeds. Here's what's typical this week and when to call your pediatrician.
In short
At 11 weeks (about 2.5 months), many babies are awake for longer, smiling socially, and taking bigger, less frequent feeds — usually 24-32 oz of milk a day and sleeping around 14-16 hours total, often with a longer stretch at night.
🍼 Feeding
About 24-32 oz of breast milk or formula per 24 hours, typically 4-6 oz per feed every 3-4 hours (roughly 6-8 feeds a day). Breastfed babies still nurse on demand. No solids yet — most babies aren't ready until around 6 months.
😴 Sleep
Around 14-16 hours total, with roughly 3-4 daytime naps and one longer night stretch (often 5-7 hours). Wake windows are about 60-90 minutes at this age. Always place baby on the back to sleep, alone, on a firm flat surface with no loose bedding, pillows, or bumpers.
What's happening this week
- •Around this age, many babies hold their head steadier during tummy time and may push up on their forearms.
- •Social smiles are often well established now, and some babies start cooing back when you talk to them.
- •Many babies are discovering their hands, bringing them to the mouth and beginning to swipe at dangling toys.
- •Eyes track moving objects more smoothly across the midline around this age.
Milestones to keep in mind
- ✓These are ranges, not deadlines: by the 2-month checkup (just behind you) most babies smile socially and briefly lift their head during tummy time.
- ✓Looking ahead to the 4-month checkpoint, many babies will reach for toys, babble, and hold their head steady — your baby is building toward that now.
- ✓Every baby's timing differs; the checkups at 2 and 4 months are when your pediatrician formally screens development.
Growth
💡 Tip for this week
Keep up daily tummy time in short, frequent sessions while baby is awake and supervised — it builds the neck and shoulder strength behind those head-control milestones, and helps prevent flat spots.
⚠️ When to call your pediatrician
Call your pediatrician for a rectal temperature of 100.4°F (38°C) or higher in a baby this young, fewer than 6 wet diapers a day, poor feeding or no weight gain, unusual floppiness or stiffness, not responding to loud sounds, not making eye contact, or if your baby never smiles or settles. Trust your instincts and ask if anything feels off.
Frequently asked
How much should an 11-week-old eat?
Most babies this age take about 24-32 oz of breast milk or formula a day — roughly 4-6 oz every 3-4 hours, or nursing on demand. Feeds are usually bigger and a bit less frequent than in the newborn weeks.
Is my 11-week-old ready for solids?
No. Most babies aren't developmentally ready for solid foods until around 6 months, when they can sit with support and hold their head steady. Breast milk or formula provides everything your baby needs right now.
How long should an 11-week-old stay awake?
Wake windows are typically about 60-90 minutes at this age. Watching for early tired cues like yawning, looking away, or fussing — then settling baby for a nap — can make naps easier.
Looking for the bigger picture? See the month 3 overview →
General guidance, not medical advice. Every baby develops at their own pace — talk to your pediatrician with any concerns.