Ok imagine this, you are lucky, that even though the lights remain on and you are not allowed to cover your head, amid the constant cell doors slamming, the screaming and shouting, you somehow manage to grab an hour or two of sleep.

You will be woken at 4:30 and made to roll out. You may get to use the bathroom and eat breakfast, you may then be locked in your 2 man cell all day long.
Rule 31 states:
Inmates shall not lie on any bunk except during night roll in hours 10:00 PM to 09:30 AM. Inmates shall not lie on any floor or be under any bunk at anytime. During other roll in times an inmate may sit on a bunk, but must be sitting upright. The mat shall at all times remain flat on the bunk and fully in the matt tray.
The inmate in this example was disciplined with the loss of two weeks worth of commissary/canteen privileges and the loss of three family visitations equal to six weeks, all for lying on her bunk whilst being locked in a cell all day long.