Children who nap beyond the age of two are more likely to have problems sleeping through the night, Australian research suggests.
A study found that daytime napping led to toddlers taking longer to fall asleep in the evening along with reduced sleep quality and duration.
Early childhood is a particularly important period in sleep development and toddlers are often encouraged to take a daytime nap, although by the age of two a child will usually be getting most of their sleep during the night.
Researchers in Australia analysed other relevant studies around the world including one which found that among children attending a nursery school where napping was optional, the onset of sleep was later on evenings following a nap compared with days where they had not taken one.
Napping was also not found to be a response to shorter sleep duration the night before.