Good idea,exactly what I was going to suggest. I’m a night owl,and I’ve finally come to terms with it at the age of 30. I do still go to sleep early,so I can get up in time to get things done “under the burning moon” like paying bills etc. 
:eek: I’m not a moron.
I really do sleep during the day,and do things at night. Some people are just wired that way. It’s better than being ill all the time because I’m not getting enough sleep.
Even my doctor has said that as long as I get enough sleep,and don’t oversleep,then I should be fine. I had a bad patch there for a while,I kept getting sick,because my body couldn’t fight the illness,it was too weak.
She’s said that as long as we (my husband is a night owl too) can still function,and get shopping,and bill paying and such done,then there is really no problem. We often take time to get out,during the warm months,and get fresh air,and sunshine,we just plan accordingly,we go to sleep early,and get up to “frolic under the burning moon” We go out less during the winter,too icy and cold,brrrr.
It is hell,to try to function the same as the rest of society,but you can’t because you just can’t sleep during the night. I hope you can find a solution that works for you. Just letting you know,that at least one person knows what you are going through,and that sleeping during the day really is a possible solution. It’s a bit strange adjusting at first,and you do have to plan to get sunshine too,but it worked for me. It’s better than not sleeping at all,that’s for sure.
Do go to your doctor first,and see what is going on with your system,maybe there is a medicine that would work. I wouldn’t go for the Valerian,without reading up on it,and consulting an herbal specialist. I mean the kind that holds a degree. Homeopathic physican? I think that’s the one I mean,they study as hard as a doctor,and know as much as a pharmiscist,if I remember correctly.
Good luck,I’ll be thinking of you,and hoping you find a solution.