Is it dangerous to sleep with your smartphone?

Hopes&Fears answers questions with the help of experts who know what they’re talking about. Today we wondered if it's bad for your health to bring your electronic devices to bed.
First Liquid Metal phone, the Turing, available for preorder July 31

The Android Turing phone has a shell made of liquidmorphium which is stronger than both titanium and steel, disperses shock much more efficiently, and won't bend.