Questions kids askNight
Where do dreams come from?
Dreams are made by your own brain, which stays active while you sleep and weaves memories and feelings into stories, though nobody knows for certain why.
How to explain it, by age
This is how Pukki answers the question, once for each of the five age bands it speaks to. Pukki is a voice-first AI encyclopedia for kids: a child asks out loud, and it gives a short spoken answer made for their age.
For a 3- or 4-year-old
Dreams come from your busy brain while you sleep. It mixes pictures, sounds, and things from your day, like toys in a box. What might your brain put in a dream tonight?
For a 5- or 6-year-old
Dreams come from your brain while you sleep. Your brain sorts memories and ideas, like putting toys into different boxes, and sometimes they become a little story.
For a 7- or 8-year-old
Dreams come from your brain while you sleep. Your brain sorts memories and feelings, then makes a moving story from them, like mixing yesterday’s pictures into a little movie. Most dreams happen during a sleep stage called REM sleep.
For a 9- or 10-year-old
Dreams come from your brain while you sleep. Your brain sorts memories and feelings, and sometimes mixes them into a story, even though you are lying still. Most vivid dreams happen during REM sleep, when your eyes move quickly under their eyelids.
For an 11- or 12-year-old
Dreams come from your brain’s activity while you sleep. As it sorts memories and emotions, it can combine bits of images, sounds, and ideas into a story, even though nothing is happening around you. Scientists know this much, but they still do not fully know why dreams happen.
A little more, for you
Most dreaming happens in a stage of sleep called REM, for rapid eye movement. In REM sleep the eyes twitch behind closed lids, and the brain is about as active as it is when we are awake.
Why we dream is still debated. Sleep helps the brain form long-term memories, and many researchers think dreams are tied to that work or to handling emotions. Nobody has shown it for certain, so “we don’t know yet” is an honest thing to tell a child.
Questions to ask them
- Do you remember a dream you had?
- Was anything in it from your real day?
- Why do you think we forget most of our dreams?
These two parts are ours. In the app, Pukki writes its own for every answer, under “Explain it to me” and “Ask them back”.
One more why
Where these answers come from
We asked Pukki this question ourselves, once for each age, on 2 October 2026. No child’s question is published here. The answers are written by AI, and we read each one against the sources below. None of the five needed a change.
Pukki’s answers vary from one asking to the next, and can be wrong. It answers in the English its device is set to; these were asked in Indian English. Today Pukki also ends most answers with a short question on the same topic, which a parent can turn off.
- National Heart, Lung, and Blood Institute: How Sleep Works: Sleep Phases and Stages
- Sleep Foundation: Dreams: Why They Happen & What They Mean
Read against these sources on 5 October 2026.