Before Sleeping
بِاسْمِكَ اللَّهُمَّ أَمُوتُ وَأَحْيَا
Bismika Allahumma amutu wa ahya
Translation: In Your name O Allah, I die and I live
Reference: Bukhari
Upon Waking
الْحَمْدُ لِلَّهِ الَّذِي أَحْيَانَا بَعْدَ مَا أَمَاتَنَا وَإِلَيْهِ النُّشُورُ
Alhamdu lillahil-ladhi ahyana ba'da ma amatana wa ilayhin-nushur
Translation: All praise is for Allah who gave us life after He caused us to die, and to Him is the resurrection
Reference: Bukhari