
Quick Facts
| Age | 22 weeks (around 5 months) |
| Length | ~60–70 cm (WHO range, ~5 months) |
| Weight | ~5.4–9.3 kg (WHO range, ~5 months) |
| Daily Sleep | ~14–16 hours (about 3 naps + longer nights) |
| Feedings per Day | Feed on cue |
| Formula Amount | On cue — follow your formula’s feeding chart |
Length and weight are the WHO 3rd–97th percentile range (both sexes) from the WHO Growth Charts for Canada. Your provider tracks your baby’s own growth on these charts.
Key Takeaways
At 22 weeks, most babies have the 3-month skills the Canadian Paediatric Society describes and are building toward the end-of-8-months set.
Physical Development
A 22 week old baby has strong head control, often sits with support, and rolls from front to back, per the CPS. Trunk strength is building toward sitting on their own, which the Canadian Paediatric Society lists among the end-of-8-months milestones. Tummy time is stronger, with pushing up and pivoting.
Hands & Hand-Eye
A 22 week old baby reaches for and grabs objects and brings hands and toys to the mouth, and may begin to move an object from one hand to the other. Offer safe toys of different sizes and textures to grip and pass.
Social & Communication
A 22 week old baby smiles, laughs, squeals and babbles in longer strings, and “chats” back and forth, per the Canadian Paediatric Society. Around now, many babies clearly recognise familiar faces and light up at their own reflection — a mirror at floor level is worth its space during tummy time. Copying speech sounds and responding to others’ emotions come over the following months. Answer the babble to build conversation.
DEVELOPMENT & PLAY
- Offer safe toys of different sizes and textures to grip, shake, pass hand to hand and safely mouth.
- Talk, sing, name objects and read simple books — pause for your baby to “reply.”
- Keep up supported sitting and daily supervised tummy time — three sessions of 10 to 15 minutes.
- Keep small objects, cords and choking hazards out of reach, and never leave your baby alone on a raised surface.
ROUTINES & SLEEP
- Keep the three-nap rhythm the CPS describes, with a calm, consistent wind-down.
- Keep days bright and active, nights calm and dim.
- Practise safe sleep every time, and keep starting your baby on their back even once they can roll.
FEEDING & HEALTH
- Keep feeding on cue; follow your formula’s feeding chart for amounts.
- Give breastfed babies a daily 400 IU vitamin D supplement, per Health Canada and the CPS; formula-fed babies don’t need one.
- Start thinking about solids — a high chair, a small spoon — but wait until around 6 months.
Frequently Asked Questions
What should a 22 week old baby be doing?
A 22 week old baby usually has strong head control, often sits with support, rolls front to back, grabs objects and may start passing them hand to hand, and is vocal — smiling, laughing, squealing and babbling, per the Canadian Paediatric Society. Every baby develops at their own pace; raise concerns, especially in more than one area, with your doctor.
When do babies start babbling?
Many babies babble in strings of sounds around this age, building toward copying speech sounds, which the Canadian Paediatric Society lists among the milestones most babies reach by the end of 8 months. There’s a wide normal range. Answering your baby’s sounds, naming objects and reading together all encourage language.
How do I know when my baby is ready for solids?
The Canadian Paediatric Society says most babies are ready around 6 months, when they can sit up with support and control their neck muscles, can pick up food and bring it to the mouth, hold food in their mouth without pushing it out, and show interest when others eat. Waiting past 6 months raises the risk of iron deficiency, so aim for around the 6-month mark.
How much should a 22 week old baby eat?
A 22 week old baby feeds on cue — the Canadian Paediatric Society advises feeding on demand. Amounts vary a lot; follow the feeding chart on your formula’s packaging. Plenty of wet diapers and steady weight gain show your baby is getting enough. Solids aren’t recommended until around 6 months.
How much sleep does a 22 week old need?
By 4 months, the Canadian Paediatric Society notes, most babies need three naps a day — morning, afternoon and early evening — with total sleep around 14–16 hours across naps and nights. Every baby differs, and night waking still happens. A regular daily rhythm and calm wind-down help sleep settle.
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