After I answered your comment I still had to think about it and I had to add the following. Often it's hard to separate serious reading from enjoyment: for example you could be reading reddit or hackernews either knowing that you are just doing it for entertainment or rationalizing it by thinking you are doing serious reading not realizing that the real reason is the dopamine rush you get. How much time are you willing to spend on random internet reading and other time wasters? You have to judge it yourself. But if you are investing a large amount of your time into that maybe it's good to start reevaluating your information diet.

Timothy Ferriss himself reads one hour of fiction every day prior to sleeping so I guess he was only referring to information you consume for non recreational purposes.