Lack of blood to your butt or you hurt it, lets say u fell over and landed on it, then your bone might be bruised and it would hurt to sit on it or sleep on it.
sitting too long, menstrual cramps, bruises, or running a lot can cause your butt to become sore.
Your legs may hurt when you sleep because you are experiencing growing pains. You may also have restless leg syndrome which can cause sore legs.
Cause some people sleep wrong
you banged it in ur sleep xD
I guess falling from a height directly on your buttocks, or maybie a skin infection/diesese that looks like bruising
Because the nerves aren't reacting to anything so they "sleep"
I am a Doctor and all it is, is that it hurts when you grow cause your body is pulling so god made you grow only in your sleep so that it doesn't hurt when your awake and trying to enjoy your day. :)
Can gas cause your arms to hurt?
Sleep
it may or may not
It doesn't but it is unhealthy...
no they dont feel it