Covid-19 is having a huge impact on children’s sleep, according to a survey by The Sleep Charity, The Sleep Council and Sleepstation.

They found that as many as 70% of children under 16 are going to bed later and 57% are also waking later – showing a significant change in bedtimes. Experts think this will have a long-term negative impact when schools re-open.

It was also discovered that nearly three quarters (74%) of children are using electronic devices (TVs, tablets, game consoles and phones) a lot more during the coronavirus lockdown.

And the survey revealed that a third of children are sleeping longer than normal, indicating that it will be harder to go back to previous sleep routines once they return to school. Nearly two in 10 are sleeping less which could impact on physical, mental and emotional health and wellbeing.

But why do we dream? Have you been having stranger dreams than normal? And what can we do to stop nightmares from happening? Newsround spoke to sleep physiologist Stephanie Romiszewski to find out. And check out her tips for a better night’s sleep below!