Unfortunately to fully heal a full night's sleep would be required. Still Mike would feel renewed, but not as much if he woke up maybe an hour or so later. Still there wouldn't be time for a short workout otherwise, there being enough time for maybe an hour so that he wouldn't be late for his first day of school. 

---
Mike's workout: 92 - 2 Str = 90

Mike's workout: 88 - 12 Vit = 76
---

Unfortunately as a recently former cripple with little physical strength to speak of working out wouldn't exactly be his forte in either the actual workout or how to go about doing so. So unfortunately even after the short hour that was all that Mike had time for, which was a decent workout time for a short workout, Mike would find that he didn't really benefit at all from the early workout, probably nearly dropping some weights a couple of times and having to take several breaks since not really knowing how to workout properly and conserve his somewhat decent amount of stamina probably also took a toll, as did getting up earlier than usual.