what tent are you using? I was curious about the the "creep". I have a hypoxico and it looks it's time to get the altimeter
It's a borrowed tent from some friends. It's a Altitude Tech. 2 years old I think. I found if I unzip for 30 seconds at 4am or so, it drops altitude back down, then I unzip a crack about 4" and it will very slowly drop until morning and be slightly lower than start of the night.