I got VERY motivated when I found out I had to use it for 30 nights IN A ROW or else I would have to pay for it myself, and time was running out in my initial 3 months. I guess you have to put more water in - I noticed that sometimes I would bump the heat setting up or down and not notice, as I was turning the machine on for the night, and even a difference of 1 in heat level will make it run out of water. I need 75% filled for 3, 50% for 2. But 3 is too hot these days.

I quit using it for a week after I fulfilled my "obligation", but I noticed I have started snoring and napping during the day again.

idk, I agree, it was very intrusive at first, like, who are you and what are you doing in my bed??!! but eventually it becomes a loving companion