Napping could be good for the development of youngsters, it has been claimed.
Neuroscientist Rebecca Spencer of the University of Massachusetts Amhers is launching a study to look at the connection between sleep, physical activity and children's behaviour.
Some 480 three to five-year-olds will take a series of fact-based and emotional memory studies, both with and without a short sleep, to see if there is a discernible difference in their ability levels when well rested.
"There's some evidence in young adults and in older children that naps are beneficial. We need to know whether keeping naps … is important," Ms Spencer stated.
Indeed, Juliet Newson, sleep therapist at Millpond Children's Sleep Clinic (mill-pond.co.uk), noted most kids will nap.
She added parents should try to make sure youngsters have their snooze early enough in the day, as it could affect their bedtime routine if it is too late.
"You need to look at the length of sleep they are having, the timing of their nap and the total amount of sleep a child needs for that age," Ms Newson stated.