The linked article is part of research on optimal learning. The proposed schedule will get a lot more out of your time. It's usually better to do your studying super early in the morning rather than late into the night, and proper sleep helps a lot with information storage. YMMV though; some people are naturally better in the evening, or sometimes daytime schedules just don't fit someone's lifestyle.
I had a similar college experience to the parent post. 8am classes every day and late night lab classes every other day. This schedule prevented me from having any time in the morning to study and pretty much forced an erratic sleep schedule on myself. Lots of quick naps in between classes.
That’s what it felt like, like I had very limited time to shove x amount of things into my brain which only processes at y rate, so if I had too many things to shove in at a time due to taking a full courseload, that meant staying up since I cant change the rate my brain digests information without abusing stimulants like some of my friends.
So then you end up with a few nights of 5 hour sleep which you pay for by sleeping for 13 hours on the weekend. Not healthy, but it became a matter of necessity due to also having to make time for a part time job.