Delaying bedtime or leaving children without a nap with the goal of getting them to wake up later and giving parents more rest does not work. It can lead to irritability at the end of the day and worse sleep at night, which has its consequences the next day.

If we put a child to bed later, they will most likely get up at the same time as always, and we will only make them tired during the day, says Elena Martínez Cayuelas, a neuropediatrician at the Fundación Jiménez Díaz University Hospital.