man just was not meant to sleep during the day

[-Jrabbit]

Tell her you'd like to be friends, but you're having sleep issues being on graveyard, so it's important to have off-limits time. Agree on the times when it's OK for her to call. Done.

If she can't stick to the rules, she's more interested in stringing you along than having an actual friendship.

[mrmitchell]

Just try extra hard to be healthy. Doing night shifts is a superhuman task and eventually you will succumb to problems, but it'll take longer if you eat right, sleep your full 8 hours in the day, and work out. Also don't be bummed if it seems hard to go to sleep. It's supposed to take about fifteen minutes. If it takes more than that, I always take it as a sign that I don't need it yet, but I think better advice would be that you're not sleeping or eating or exercising right, so improve your regimen (you know your life better than us) until you do only take < 15 min. to doze off.

Try to only eat meat and fattier foods in the few hours before you go to sleep, not the rest of the day.