I just lost three eggs overnight.

It wasn't the cotton balls - it was too much effort to find them so I switched to a shallow dish. Temp has been steady, I've been turning 4-6 times a day plus again at bedtime. The only thing I can think of is that the humidity is a bit low in the mornings, and a bit high when I refill it. (Still getting it stable. It's hard since my room itself changes humidity so often due to a shower)
I only have two or three left that are still any good. Booger Brain is the strongest survivor so far. I'm very sad now. I wanted baby chickens, and with my cat dying I was hoping they'd cheer me up. Booger Brain had better make it. The little snot gives me nothing but trouble. (Small egg, dark egg, likes to roll around because he's tiny so he now has padding)