And as much as you can, keep that area strictly for sleeping. ''Avoid doing work or anything stressful from your bed,'' says Jeff Kahn, co-founder of the Chicago-based sleep-research company Rise ...

The good news is that this doesn't have to be permanent, and people can work to ... use in bed, ideally stopping at least 30-60 minutes before sleep,” said Hjetland. “If you do use screens ...