My son wont stop peeing in the bed!!

almost every night my 4 year old son pees in the bed. Ive tried everything!! and he used to be be fully potty trained. he would go to the bathroom on his own in the middle of the night. but when i had my son (2 years ago) he stopped and has been having this issue ever since. what should i do because i took him off pull ups a while ago and i take him twice before i go to bed. i cut his drinking off at a certain time.but he still pees. i dont want to back track but im tired of washing sheets! lol

    8Theresa Gould
    My mom and I were just talking about this and one of my sisters was 10 or 11 when she stopped wetting the bed. Mom took her to the doctor and everything. There was nothing wrong, she just had to outgrow it. I still have a couple of bed wetters but am not worried about it. Waterproof pads and pull ups are what we use.
      i mean he pees like a race horse! lol i dont let him have anymore drink after 6 because he goes to bed at 8. i make him go before he goes to bed. i litterally get him up at 10:30, 11:30 and now 1am and he pees at full speed each time! and them he still pees in the bed. idek how he can have so much pee in his body if he isnt drinking that much.. I think i am going to go with the water proof cover but i will eventually have to get him a new mattress because this one has been soaked too many times!