Well they seem to be doing just fine. The box is wooden, very small and padded with foam. It keeps the heat very well. Even so, i try to keep it close to my core while i sleep. I also have a very thick down quilt and luckily it happens to be summer. I'm sure chickens and quails hop off those eggs now and then to go eat and drink.
They will only leave the eggs for less then 30 minutes at a time, and that way the eggs core temp. still stays warm. They will not leave the eggs 7 or eight hours (the time most humans sleep for)
I wrap my eggs in a thin layer of tissue so it isn't in direct contact with my skin. However i have had a day here or there without the tissues.
Don't see why oil would be an issue. I'm pretty sure chickens and quails have oil.
We have much more moist and oily skin that birds. Humans produce lots of sweat to help cool down also. Birds do not sweat and they do not have oil producing glands in their skin. Also quail dust bath to help dry out their feathers.
Did i mention it's very hot at the moment. But i have been thinking about setting a brooder up for that final 'hatch day'. Obviously my eggs are doing fine so far. Your comment felt kind of negative
Quail eggs need a temperature of about 98 degrees to hatch. Most 'hot' days are not that hot. All hatched chicks need a brooder with a heat lamp to stay warm as they can not regulate their body temperature. It would be a shame to go though all that work and have it hatch out, only to get chilled and other complications.
. All that talk of death and electricity usage (which i think i've made a huge saving on all things considered!)
I just thought as you partner often turns off the incubator to save electricity that you ought to know that the chick will need electricity 24 hours a day for the first few weeks of its life. I don't think I was being negative or talking a lot about death. I just think if you are going to go to so much trouble to hatch the egg with your body, you are going to get very attached to the chick, and I don't want you to be upset if it does die because you are not aware of what it needs.
I hope you manage to hatch out you little chick! This is a very interesting topic.