

After the PC awakes, the gauge will display the number and resume its normal function. This bug may be fixed by finding a bed and sleeping for any amount of time. During this time the PC will not advance into sleep deprivation.

This is normally caused by traveling through canyon wreckage, which sets all hardcore meters to zero. PC Playstation 3 Xbox 360 Sometimes the SLP meter on the Pip-Boy 3000 can get stuck on zero, and in fact will not display any number below the indication arrow. Otherwise, the lowest value that can be achieved through normal means is 2.

The effects of not sleeping, that is surviving on caffeine-based consumables or chems, is uncertain, however, no known ill effects have been reported.

Sleep is measured in Hardcore mode as "SLP" in the Pip-Boy 3000. Beverages containing caffeine will reduce this value, as will sleeping in a bed. Sleep is a consequential statistic of the total time spent awake: the longer one is awake, the higher the sleep value becomes. Companions may also benefit from this in the way of health regeneration. By clicking on the bell, one can choose between several options to rest. On the top left of the Pip-Boy screen, a bell icon is next to the date and time. The player character can rest to recover their health in almost any place, as long as they're not in combat, using the Pip-Boy 2000 alarm clock function.
