More than a couple of parents are relying on Alexa and other apps to tell their children a bedtime story so they do not have to, research suggests.
Charity BookTrust surveyed 1,000 children with children under 10 to find out whether or not they are reading a book.
Only 28% said they simply felt "too busy".
Twenty-six-percent of parents have tried to use home assistants like Alexa to take on the role of bedtime storyteller, and more than half using a phone or tablet app on YouTube.
While 83% of parents said they were reading a book, they were reading a book.
Francesca Simon, the best-selling author of the Horrid Henry series, said, "I think it's dismaying because when I first saw these results, that 25% of parents subcontract their bedtime stories to tech, I was reminded of those science experiments where monkeys were given a wire-covered mother.
But it's just not a substitute for parents, I think people are really missing the point of what this is all about.
It's because they're tired and they don '' I do not buy the 'I am busy'. There is an element of laziness, but I do not really get it because it is just so important. "
BookTrust director Gemma Malley warned that swapping books for technology "can have profound consequences" for children and urgent parents to celebrate nationwide pajama on 7 June.
It asks Britons to donate all the books have to be read to make the most of the bedtime story.