From my experience, people often experience OBE related phenomenon when they are sick or not feeling well, mainly because their mind is somewhat disassociating itself from the sick physical body.
Also, when you are sick, it's usually harder to sleep. Your body is usually relaxed but your mind is all over the place, which is miserable! This usually increases the chances of your mind becoming aware while your body is asleep, and therefore, increasing the chance of having either an OBE or perhaps sleep paralysis.
Also, when you are sick, it's usually harder to sleep. Your body is usually relaxed but your mind is all over the place, which is miserable! This usually increases the chances of your mind becoming aware while your body is asleep, and therefore, increasing the chance of having either an OBE or perhaps sleep paralysis.