I work night shift. When to test?

Hello! Question about testing. I work night shift and mostly stay on a night schedule even on my off days. That being said here is my question: Should I test when I wake up in the afternoon or can I still test in the morning after a regular night of work? Basically I am asking do I absolutely need to test after a full sleep or can I test just after not having used the bathroom in a long time? I didn't know if there was something special about our body and sleep that affects test results and made it necessary to always test after having a full sleep.

Thank you!!

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u/Bertha_Manchester — 6 days ago