One night does not a trend make and it's damn near impossible to correlate results based on one single night with some sort of change. We simply don't sleep the same each night so things can vary either a little or a lot from night to night without any changes at all. I see it myself all the time and I haven't changed anything. Some nights I get a lot of variations in pressure and some nights not much in variations of anything.
Give yourself a week with the new change and see what you see then....also monitor how you sleep and/or feel.