I had mine removed at 25 years, too. My ileostomy was placed where my temp stoma had been 25 yrs ago. I didn't have any problems with it 25 yrs ago, so thought that would work out, and it has, for the most part. It probably would have worked a bit better if it had been placed just a tad lower, due to most pants coming across the stoma - but my stoma placement was done on an unplanned basis while I was in the hospital with no pants! So ... wear slacks that you like to normally wear to your appointment. As for sleeping, I can sleep on either side, with no problems with my right-sided stoma - I toss and turn a lot, and haven't run into any issues - I keep the bag tucked into my high-waisted briefs at night to keep it secure. Others may have different experiences. Best of luck with your surgery.