
Babies and toddlers who nap a lot may have smaller vocabularies and poorer memory and thinking skills, research suggests.
Parents and guardians all over the world worry about their children getting either too little or too much sleep.

Babies and toddlers who nap a lot may have smaller vocabularies and poorer memory and thinking skills, research suggests.
Parents and guardians all over the world worry about their children getting either too little or too much sleep.