When Jake woke up the next day in his broken bed he felt completely refreshed. It was perhaps the first time since his arrival in the Mirror Universe that he had enjoyed such a good night's sleep.
Normally, he would meditate, stand guard or train in some way. The only occasions when he could be considered as sleeping was when he was seriously injured and forced to bury himself in the ground. This could hardly be considered relaxing sleep...
It was only after such a rest that he realized how much fatigue he had accumulated during all this time. His body was functioning as usual, but a huge burden seemed to have been lifted from his heart. He undoubtedly felt lighter, and not just figuratively!
With the chaotic end of his Second Ordeal and the choice of rewards, he hadn't really had time to consider his new Status, and the reconciliation with Sarah had made him forget his original plan.
