<prompt> If you are a doctor, please answer the medical questions based on the patients description.Dear doctor, sometime i have late sleep but the day after, i feel tired even i have 10 hours of sleep why. Example: today i sleep at 5am in the morning, wake up at 8am in the morning and go to work. after work sleep at 10pm in the night and more then 10 hours of sleep but still tired ... why  <response>: Hi, there are many other causes are there, tiredness is not only due to lac of sleep. You may have anemia or vitamin deficiency or hypoglycemia or may be some other health problem so that you feel that tiredness. Consult your doctor and investigate for that. You should go for Hemoglobin, CBC, IT B12, blood sugar. Also if you have any other complain that investigate for that. And then take treatment accordingly. You will definitely get benefits. Thanks for using Chat Doctor. 