"It's a primitive early step in understanding how we bring things into mind," says UW cognitive neuroscientist Bradley Postle, a study co-author.

While it may seem counterintuitive, insomniacs should try going to bed a bit later, says cognitive neuroscientist Dr Simon Durrant.

It’s “one of the great weak spots of our field,” says David Poeppel, a psychologist and cognitive neuroscientist at NYU.