A Ceiling-Mounted Phone Holder That Descends for Bedtime Viewing
iDangle: A Motorized Phone Mount That Lowers from the Ceiling
iDangle is a ceiling-mounted phone holder designed for watching videos while lying down. Flip a switch to bring the holder down, attach a phone magnetically, then remove the phone and send the holder back up when finished.
Inventor Matty Benedetto presents it as part of his Unnecessary Inventions collection.

To avoid holding a phone in bed, the ceiling now has to do the work. That's a lot of hardware to rest your arms.