I don't worry too much about it most of the time. I was meant to have a 24 hour monitor on last year but refused it because of the frequency of the inflations. I ended up taking a machine home for a few days and testing myself every couple of hours, or after my activities changed, and keeping a spreadsheet which I took back in. The cardiologist wasn't thrilled, but it was that or nothing. In the end, she grudgingly admitted the data was useful because I had documented what was going on at the time.
I know I 'should' be more pedantic about blood pressure cuffs, but I've had a double mastectomy, endless puddling around in my armpits and my legs are too chunky for most cuffs anyway. Pffhht.