Ashton was excited for today...
He hasn't slept at all but he's still energetic, well at this point in his life, especially with his current cultivation rank, losing a night of sleep isn't a big deal at all. Plus, there is a legitimate reason for him to look forward to this moment.
[System Overhaul ends in: 2 mins...]
After a month of being offline, the System's overhaul was about to be done. Ashton had no idea of what this had in store for him but he was still looking forward to it.
To make sure that he wouldn't get disturbed, he told his friends that he'd be busy today, locking himself inside the labs to prepare for something. They didn't pry and acknowledged it so none of them should be coming today to bother him.
Well, if there's an emergency, that might change but for now, this shall do.