Error knew something was going on in Nightmares mindset but he didn't know what was wrong because Nightmare wouldn't tell him. Error decided to listen to what Nightmare said in his sleep before thinking of any reason why he was acting like this. The Nightmare started to thrash in his sleep again with tears running down his face. Nightmare was crying and begging for forgiveness. What is he so guilty about Error thought? But he won't know until Nightmare wakes up and tells him more about it. Nightmare jolted awake screaming and crying. Nightmare looked at Error who was holding him down to the bed. "Error is that you?" "Yes, Nighty it's me. What happened in this nightmare?" "I killed you and you came back to life. I went crazy killing you, the gang, and myself." "Nighty don't worry it was just a Nightmare that would never happen. I love you with all my heart and you'll never go crazy as long as you have my love and we work together." The Nightmare Sans started to calm down as Error rubbed his back and whispering in his nonexisting ear. Nightmare let out a yawn and laid back down as Error kissed him on the forehead Nightmare was fast asleep. Error smiled as he tucked Nightmare in and kissed his forehead again before leaving the room. Also, Nightmare was sleeping peacefully again. Error fell asleep in his own room that Night. Error woke up Saturday morning which is the day they're supposed to sleep in. Everyone was up all except Nightmare who was still asleep. Wow, he's still sleeping, everyone thought. Nightmare was having a very good dream. Error knew Nightmare was going to be out cold for a while because he was still exhausted because of the nightmares he is having and staying awake all night long. The Error Sans didn't know how to help him anymore so he called Nightmare's brother dream.