Sleep is a naturally recurring state characterized by reduced or absent consciousness, relatively suspended sensory activity, and inactivity of nearly all voluntary muscles.

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I'm trying to build mass, and I had a great upper body workout yesterday, but I only got about an hour and a half of sleep last night

Does this completely negate my workout? Is there something I can do to compensate for it today? I know it was only one session, but I just absolutely hate the feeling that the entire session wasted. ...