I had mono during my university years and the need for more sleep stayed with me for several years after recovery. I managed to scale it back to a normal eight

I had mono during my university years and the need for more sleep stayed with me for several years after recovery. I managed to scale it back to a normal eight hour night by simply going to bed earlier, say 9-9:30 pm. The earlier I went to bed, the higher the quality of sleep and consequently the less I seemed to need. I still go to bed relatively early compared to most people, around 9:30-10 pm, but I get up at 6 am and feel great. Give it a try and see if it works.