Thank you for asking Healthcare majic. My name is Dr Ehsan Ullah & I have gone through your query. you have mentioned that you feel numberness which causes discomfort and keeps you from falling asleep at night The numbness has several causes which can be categorized into A) Positional B) Neurological C) Vascular D) Electrolytes imbalances i am gonna tell briefly about all these in step wise pattern A) Sitting or standing in a position for long periods of time can cause numbness B) Nerve supply if affected by the -Pressure effects e.g herniated disk -Injury to the nerve -Lesion causing pressure -Alchohal, tobacco , Lead all these can lead to numbness C) Vascular if the blood supply to a part of the body is interrupted such as vessel inflammation (vasculitis) or Hardening of the arteries,which occurs when fat, cholesterol, and other substances build up in the walls of arteries (atherosclerosis) D) Imbalance of certain electrolytes such as Sodium , Potassium & Calcium as well as Deficiency or lack of Vit B.12 can lead to numbness there are several other Causes but you should look first for these elements Modify your standing or sitting position instead of long term sitting in a single position you can start Multivitamins available over the counter containing Vit B.12 if the condition still don t improve then you will have to visit your GP/ Physician for further work up Hope this may help you. Let me know if anything not clear. Thanks.