Hi Mrs.D - have used Tramadol for years now. I can't say that my not sleeping well is due to the use of this drug or not as I never have been a great sleeper. I don't ever recall getting nauseated from it either. I did try the extended release once and it did not seem to work very well, so never used it again. It sure does take care of the tingling and hurting. I also take Lyrica - 100mg three times a day.

Take care.