3 year old toddler

What a 3 year old is doing

By their third birthday, the CDC's checklist describes a child who talks with you using at least two back-and-forth exchanges, asks "who", "what", "where" or "why" questions, says what is happening in a picture when asked, says their first name when asked, and talks well enough for others to understand most of the time. These are skills at least 75% of children have by three.

The CDC also lists putting on some clothes, using a fork, drawing a circle when shown how, and calming down within 10 minutes of you leaving at a childcare drop-off. Ireland's HSE adds walking upstairs and pedalling a tricycle, and some things parents worry about: a three-year-old may line up four objects like blocks or cars in a row, find sharing difficult and not take other people's feelings into account. Our guides to lining toys up and sharing and turn-taking explain when these are typical, and our 2 year old guide covers the year before.

3 year old talking and understanding

The HSE describes a three-year-old who may use 4 to 5 word sentences, listen to short stories, tell stories that will not always make sense, and follow instructions with 2 or 3 parts when focused, such as "put the horse and cow in the big box". "Who", "what" and "where" questions make sense; "why" and "how" questions are harder and may frustrate them.

Speech sounds are still arriving. By three, the HSE says children may be using more sounds, including b, p, n, m, d, t, w and h, and it lists stammering sometimes as part of the picture at this age. By four, it expects speech to be easy for others to understand, though sounds such as s, z, l, sh, ch, j, th and r may still be difficult. If your child has started to stammer, our guide to a toddler who has started stammering covers when to ask for help.

3 year old sleep: how much, and the nap question

Ireland's HSE says children aged about 3 to 5 need about 11 to 12 hours of sleep a night. At three they may need one nap of up to an hour, but not all children do, and quiet time reading and playing may be enough. For children up to three, it advises avoiding naps after 3.30pm so they are ready to sleep by 7pm to 9pm. Our guide to dropping the nap covers the last one.

"Sleep regression" is not a term the HSE uses, but it does describe what knocks sleep at this age: a child may be very tired after pre-school or the childminder, especially when they first start, and holidays, illness or a change in routine can often upset sleep. The HSE suggests starting the bedtime routine between 7pm and 8pm, and says a child should fall asleep within 30 minutes of going to bed. If yours does not, it suggests a later bedtime for a while, then moving it 15 minutes earlier every few nights, keeping the same morning wake-up time throughout.

Food at 3

By five, the NHS says children can eat a healthy balanced diet like the one recommended for adults. Lower-fat dairy can come in gradually from two if your child is a good eater and growing well, but skimmed and 1% milk still do not contain enough fat to be a main drink under five. Aim for at least 350ml (12oz) of milk a day, or two servings of foods made from milk.

The NHS also suggests at least two portions a day of protein from vegetable sources such as beans, lentils and tofu, or one from animal sources such as meat, fish and eggs, and at least one portion of oily fish a week. Whole nuts, including peanuts, are still a choking risk under five, there is no need to add salt, and sugary foods and drinks are best kept to mealtimes.

Checks and vaccinations around 3

At three years and four months, the NHS offers the 4-in-1 pre-school booster, and a first or second dose of MMRV to children born between 1 September 2022 and 31 December 2024, a range that includes every child born in 2023. Your GP surgery can book or rearrange the appointment, and the NHS says you can still catch up on most vaccines if one is missed.

England's routine health and development reviews run until a child is around two, so there is no scheduled three-year review; you can contact a health visitor or GP at any time with a concern. In Ireland, the next check falls at 46 to 48 months (3 years 10 months to 4 years), when the public health nurse checks growth, eyesight, movement, speech and play, including whether your child is toilet trained. Our toddler vaccinations guide covers other countries.

Play and pre-school at 3

The CDC's ideas build on conversation and early learning: read together and ask "What do you think will happen next?"; play counting, matching and opposites games; and offer playdough, which builds the hand and finger muscles used for writing, buttoning and cutting. Give instructions with two or three steps, such as "Go to your room and get your shoes and coat."

Encourage play with other children, and get ready for new places such as pre-school by reading stories about them or role-playing. The CDC suggests no more than one hour of screen time a day, of a children's programme with an adult present, and no screens in your child's bedroom. Our guide to preparing for pre-school or school covers the move, and our toddler car seat stages guide answers the three-year-old car seat question by country.

What is worth raising

Ireland's HSE asks you to contact your GP or public health nurse if your three-year-old cannot walk up and down stairs independently, cannot run or jump, cannot communicate their needs, cannot follow straightforward commands, or loses skills they had before. The CDC's act-early rule is the same at every age: a missed milestone, a lost skill or any other concern is a reason to talk to your child's doctor. Our guide to when to worry about development explains how.

When to get urgent help

In the UK, the NHS says to call 999 or go to A&E if a child under five has difficulty breathing or is breathing very fast, has blue, grey, pale or blotchy skin, lips or tongue, has a rash that does not fade when you press it, is difficult to wake, has a seizure, or has not had a pee in the past 12 hours. Call NHS 111 if you are worried about a symptom or do not know what to do. Outside the UK, use your local emergency number.

Frequently asked questions

How much sleep does a 3 year old need?

Ireland's HSE says children aged about 3 to 5 need about 11 to 12 hours of sleep a night. At three, some still need one daytime nap of up to an hour, but not all do, and quiet time reading or playing may be enough instead. It suggests starting the bedtime routine between 7pm and 8pm.

Is there a 3 year old sleep regression?

Not as a term in the HSE's guidance. What it does describe is sleep being upset by holidays, illness, a change in routine or starting pre-school, when new activities and routines can leave a child very tired. Its advice is to get back into a good bedtime routine as soon as you can.

How clearly should a 3 year old speak?

The CDC's milestone is talking well enough for others to understand most of the time. Ireland's HSE says a three-year-old may be using sounds including b, p, n, m, d, t, w and h and may stammer sometimes, and expects speech to be easy for others to understand by four.