Sleeping disorder. Done flash properly?.

Disturbed sleep since 16 years. my age is now 37. when i was 20, i am having the sleeping disorder problem. consciously i would sleep always. i new and remember the every nights how long i was sleeping. when i was in hostel at the age 20, i was alert to sleep in the new area. when i came to my home town and sleeping in my house, it was amazing sleep i can get. even now i also. i am a married and had 8yrs old kid. i am staying in hyderabad and working as a software engineer, even now also disturbed sleep. but going to my home, nice and quality sleep i can get. but its not possible to stay long there it self.My husband he is very nice and loving me so much. he is having sound sleep. when he come to sleep, within 30sec he can go to deep into the sleep with snore. from that time i dnt get sleep (its happening 6yrs). and i have some unwanted things concentration...ex: have you swith off all the lights? did lock the door? did switch off the GAS, neatness, done flash properly?....this