Sleephacks?? LOL dont know what that is. But meal prepping helps keep me balanced as opposed to eating crappy hospital food throughout the night. When I eat better I sleep better. Most people have issues sleeing. I take a nice hot shower after work when I cant sleep to knock my self out.
For me night shift was very hard to balance as I was still in school at the time. Now going through it, I feel like I'll be better equipped! My tips are to invest in black out blinds or a sleeping mask. Try to keep your room as dark and cool as possible to mimic a night time scene lol. The day before the first shift go to bed as late as you can to sleep longer into the following day. For diet I would have to agree with medsurg-mike above^ stay far away from the delicious junk food vending machines haha!