The main side effect is being much more tired when you wake up, and that is cured by coffee. I love the stuff.
I noticed this the very first time I tried it - I slept in on a weekend, about 13h total and then felt very fuzzy and hung over.
That only happened once, and now I take it nightly.
Other recommended sleep hack: Tempur-Pedic sleep mask.
Seriously, it costs a lot more than the cheap plastic ones (although still only $30) but it is worth its weight in gold. For shift workers, it's great - you can sleep like a baby in full sunlight.
I noticed this the very first time I tried it - I slept in on a weekend, about 13h total and then felt very fuzzy and hung over.
That only happened once, and now I take it nightly.
Other recommended sleep hack: Tempur-Pedic sleep mask.
Seriously, it costs a lot more than the cheap plastic ones (although still only $30) but it is worth its weight in gold. For shift workers, it's great - you can sleep like a baby in full sunlight.