"Just one more cave!!" you think, but you know that inside it gets boring after about 12 hours. One day, after playing minecraft for almost a DAY STRAIGHT, I went to my mom's room and said, "Please don't steal my wood when I am asleep!" Also, when my dad saw me asleep at the computer at 1:00 in the morning, he grounded me for a week. So, it is physically healthy and mentally. Most people may not listen to this, but I would reccomend taking breaks.
so you actually got grounded for just being asleep at your computer? that must be one strict household you got.
Perhaps he or she is a minor child whose parents don't allow them to stay up and use the computer at one in the morning. There's these things called "bedtimes," maybe you've heard of 'em? I don't think it was the "being asleep" part that got them in trouble, but rather the "at the computer at 1am" part.