In one study, he and others examined teens who played games and watched videos before bed on iPads with three different levels of brightness: a bright white screen, a dim white screen and a bright ...

More information: María Fernanda Zerón-Rugerio et al, Late bedtime combined with more screen time before bed increases the ...

An curved arrow pointing right. Polish company iNyx designed a concept bed which can turn into a home cinema. It has a built-in projector and a screen which drops down at the foot of the bed.