My 8 yrs old daughter is always urinating in bed,is this normal or something is wrong?one thing my ten yrs old is sometimes having a nosebleed,why?

One at a time please: Not normal for your 8 years old, but common, first make sure he isn't chronically constipated, no fluids at least one hour before bedtime, avoid carbonated and caffeinated beverages as much as you can especially in the evening, reward for for dry nights, don't punish or reprimand for wet nights, watch for few weeks if these maneuvers don't work, see his doctor, good luck