"Sometimes I definitely do stop and think that he thinks this is what every little boy and girl does when they go to bed because he's had to deal with this since birth," said Ashley Uhlir.
Lincoln is one of thousands of kids in the U.S. currently waiting on transplant lists, hoping a living donor will become available.
Ashley Uhlir says her son has to go through dialysis nine hours every night. He can't swim, or take baths. And she says he can't stay on dialysis forever.
"I know people have been waiting a lot longer than him but just being with him everyday, I feel like we've been waiting so long and he definitely deserves it," said Ashley Uhlir. "And our lives would just change forever because of it."