One of the games you can get for free on the Ps4 "Play at home".
The Witness is a puzzle game, a very simple concept of going through mazes with (check the trailer) to open doors and proceed through a landscape.
Simple but nice surroundings, puzzles building up in difficulty, no violence or stress, just 1 job.
I played it for hours and will play more of this game when in need of chilling. I think it's worth the download time and space on your Ps4