According to my university's accommodation services, sleep disorders do not fall under the scope of these type of service accommodations. I took in sleep studie

According to my university's accommodation services, sleep disorders do not fall under the scope of these type of service accommodations. I took in sleep studies, health records, etc. I wanted to have exams proctored at 7PM-9PM. My logic and reasoning fall extremely short at 8AM. I can sleep for 12 hours from 8PM to 8AM and still feel exhausted. Nothing is as rewarding as the sleep I get during daytime hours. Nootroics, amphetamines, melatonin, all seem to fail.