it was explained to me that (this is contriversial) the midnight salivary test depends on the absolute that the patient rises in the morning and goes to bed in the late evening. example. i get up at 7am. then i go back to bed at 10 am. i then get back up at 2 pm and go back to bed at 2-3 am. i have always been a night owl. in the summer when there is no school i got to bed at 3 am and i get up at 11 AM. the midnight salivary test is not a good diagnostic test for me because i do not naturally follow the basic cortisol paterns of rising in the mid-morning (6-8 am) and going to bed in the evening(10-12 midnight) . midnight salivary tests dont work for anyone who also works second or midnight shifts with there work. cortisol levels are naturally higher and lower depending on the absolute idea of rising in the morning and sleeping in the night.
i dont do eather ... never have... my kids are just like me. we perk up in the evenings around 10pm and become most allert, we crash and fall asleep around 3 am naturally.
we are weird . but its better than being ordinary.
barb