Anna Cook was seven years old and wet her bed every night her parent's decided to head to a doctor to find out what was causing the problem.
They found out, it sometimes takes time for a child's brain to sense when their bladder is full. Anna had two options, go on medication, or try out a new device. She went with the later, it's called the urine alarm, when a child wets an alarm goes off, the kid wakes up turns it off and heads to the bathroom.
Makers say it takes about three to four months to start seeing results but the success is overwhelming, it works about 75% of the time.
One problem, users say the alarm can sometimes wake up the whole house.