Face up would be best, putting a band-aid over it before you get into bed will protect it.
On your back or side.
yes
It largely has to do with your bodies reaction to pain and how old you are. People with a higher pain threshold can normally sleep on their stomach 2-3 weeks after the piercing. People that have their belly buttons pierced when they are younger have a quicker healing time, so again between about 2-3 weeks. If it becomes infected, it could be between 4-6 weeks before you can comfortably sleep on your stomach.
yes, but it would cost quite a bit more money.
of course.
yeah
You can sleep with your cartilage piercing out after the ear is completely healed up. It takes about two months for the ear to completely heal.
If the pain of sleeping on it is tolerable then it should be ok to sleep on it.
I got my industrial about 1 year ago. The first 6 months trying to sleep on it were sore. Now 1 year later and yes, I can sleep on it but in the morning it is still sore.
A lack of proper sleep is called Sleep Deprivation. In some people it has been known to reduce their grammatical abilities, especially with regards to question phrasing. An example would be, "What does getting enough sleep affect a person?", instead of the more grammatically correct "Why am I answering this question?"
I would wait a couple of weeks maybe 4 or less just to make sure that it is some what healed.
Yes... But not recommended until after it's healed.