this morning my bator temp and humidity dropped to 90* and 59% humidity. I faught thick and thin to raise it up. I put a sweater over the bator for a few hours. As soon as I raised to where it needed to be, I took the sweater off. Right after taking the sweater off, I went outside to put clothes on the line. When I came back in, I went to check on them and IT"S BACK TO 90* and 59%. I still have 11 eggs that are waiting for hatching but for some reason I can't keep the humidity and temp at where it is supposed to be! Should I jsut leave the sweater over the bator?