yeah thats the benefits working at night but IF your body unable to take it i suggest you not to do it, our body regenerate during the night, and its hard to change. If do not feel well after few days, go to doctor and get advice, its serius case cause some ppl once sleep unable to wake up.

if 2 am ok lah, What I means is ppl who start work like 12am and work until 8am, body usually regen like 2am - 6am, i read article one, not sure correct or not, but its a life, better believe than sorry.

Correct !! I totally agree, you received more money but your health is dropping and directly affecting your life, if you got no choice, what to complain about, just make sure you know what are you doing, and need to be very sensitive about your body, dont cincai cincai, go get advice from doctor immediatly if you feel strange ie very tired but unable to sleep, etc.