Your baby at 4 months
Hello, personality. She's engaged, grabby, and delighted by you — and this is often when logging starts to feel like collecting treasures rather than data.
Development this month
Milestones show up across four areas — and they arrive in any order, at her own pace.
What you might notice
- Reaches for and grabs objects on purpose
- Rolls from tummy to back for some babies
- Babbles with more sounds and expression
- Laughs easily and loves your attention
Sleep around this age
Sleep is the question new parents ask most — so here's the typical shape of it, gently. Some days won't match, and that's normal.
Naps start to settle into a shape. Aim for ~1h45 of awake time between sleeps.
Ranges based on AAP, Polly Moore, and pediatric well-baby guidance. In the app, BabyBloomy predicts her next window from her own pattern — and never pings you between 10pm and 7am.
Feeding
Still all milk (breast or formula). Some babies show early signs of readiness for solids, but there's no rush before around 6 months.
Play & connection
Play is how she learns — and the easiest logging you'll do. A few ideas for right now:
- Rolling games and reaching for textured toys
- Peekaboo — the first taste of object permanence
- Supported sitting with toys in front
- Read chunky board books, even briefly
Moments worth keeping this month
The first years disappear fast. A two-tap log now becomes a page later.
- First deliberate grab
- The sound that makes her laugh every time
- A monthly bloom photo for the garden
You might be wondering
Many babies' sleep cycles mature around now and nights can feel bumpier for a while. It's a sign of development, not a step back — and it passes.
Some show interest, but around 6 months is the common window. Sitting with support and good head control are better signals than age alone.