Hi, I Am 37 Years Old. Now A Days I

Hi, I am 37 years old. Now a days I am unable to have a sound sleep. It takes almost night 1 o clock. Mostly I have good sleep at early morning. But I want to change this habit. I want to go early to bed and early to rise. Beside this I am seeing that my muscles are getting week. The hand movement, leg movement and bendings are slowly getting restricted. The body is not as flexible as earlier days. Can you please advice me some medication for it?