Baby stages 0–5 years (US edition)
What does your baby or toddler need right now? Sleep, feeding, diaper sizes and development per age stage — based on the CDC and the American Academy of Pediatrics (AAP).
Open the interactive dashboard → Enter a birth date once and see what matters each week — free, no account, and it grows along with your child. Includes a feed/sleep/nappy log.
- Newborn (0–6 weeks): sleep, feeding and diaper size
- Baby at 6–12 weeks: sleep, feeding and development
- Baby at 3–4 months: sleep, feeding and development
- Baby at 4–6 months: getting ready for solids
- Baby at 6–9 months: solids, sleep and milestones
- Baby at 9–12 months: feeding, sleep and milestones
- Toddler at 12–18 months: eating, sleep, development
- Toddler at 18–24 months: eating, sleep, development
- Toddler at 2–3 years: sleep, eating, potty training
- Preschooler (3–4 years): development and preschool
- Pre-K & kindergarten (4–5 years): sleep and school
Quick tools: what diaper size fits? · how much formula per day? · the full starting-solids plan