@realcaseyrollins You can get away for a day or two or three -- but that deficit will accumulate and there's a price to pay. Sleep 8 hours if you can, or as much as possible.

I do get agitated and get up if waking and not feeling like sleeping. With the darkness of Winter it's not nice out, I leave the curtains closed and just get into the computer and resume reading, replying and other activities.

Then a few days later you wake up feeling drained, and need to take time off and do little, to recover some of that lost sleep. Regular schedule is better, avoid electronics near bed or looking at any devices in middle of night if you wake up.