The song is about how lying is digging your own grave, which is what "can't sleep because you made your own bed" refers to. The truth is depicted as the source of pain for the person in the song, "the truth stabs again".
The Judas and Thomas part refers to that person being like a combination of those two, a traitor and someone who won't believe the truth.
The song ends with the lies falling apart, and the person being left with nothing anymore.
The song is about how lying is digging your own grave, which is what "can't sleep because you made your own bed" refers to. The truth is depicted as the source of pain for the person in the song, "the truth stabs again".
The Judas and Thomas part refers to that person being like a combination of those two, a traitor and someone who won't believe the truth.
The song ends with the lies falling apart, and the person being left with nothing anymore.