During active sleep, babies’ brains process all the new information they’ve been taking in during the day. It’s not uncommon for them to have strange or scary dreams – which might explain why they sometimes cry in their sleep, too.
When babies smile in their sleep do they see angels?
Many people think that babies see angels while sleeping, and this is why they smile. But that may not be true – as there is not much scientific evidence available. Babies are likely to smile or laugh in their sleep because of one (or more) of the following reasons.
Why do babies smile in their sleep Angels?
The smiling of babies during sleep is called endogenous smiling, which usually occurs when they dream of something pleasant. Dreaming and smiling usually occur in the rapid eye movement (REM) stage of sleep. Some babies may smile while falling asleep or waking up, indicating that they feel comfortable.