Update-Temp. drop overnight

I know I've seen reassurance posts about this before, but now I can't find them. I just put my eggs in yesterday afternoon-wiggler temp was 100.3. At 11pm last night it was 100.2 (which is not odd in my LG-temps flux a tiny bit). This morning a 6:30, temp. was 92.4 .
Are my little eggies ok? I had the bator going for 5 days before I got them, and had everything going jut fine-no huge drops like that in the a.m.

updated 3:40pm
I cannot for the life of me keep my temps. steady. I have a still air, and have been using the 2x4 outside of the bator method for turning so that I don't have to open the lid. I notice that the temps on the side that is up are too warm (hot air rises, I know), and the temps on the bottom side are too cool. This is why my therm read so low this morning-the digi therm was on the lower side. Should I just risk it and open the lid for turning? I don't know what to do-I feel like

 

Did you have a good hatch, or are you still waiting?

 

Well, I got the temp. back up-I'm just not sure what happened to it. I had my dh "turn" the eggs last night, and maybe he bumped the temp. switch. He says he didn't, but he was very sleepy when he did it, so? Now I feel like I need to get up a few times in the middle of the night to check!

 

Well I did adjust it up, because I was taking into consideration that my dh may have bumped the knob last night. It is at 100.0 now (wiggler), and I'm watching it.

 

Updated above-I'm wondering if the method that lifts the eggs is no good in the still air. I switched the 2x4 to the inside, so I directly lifting carton ends, but the temp at the top of the bator is not the temp I am taking at the "egg heigth". I really can't see turning 23 eggs by hand while laying on the bottom-just seems like it would take too long with the lid open. Someone help-I'm going nuts over here!!!