Not exact matches
In each case, sleep is the most important part of the recovery
cycle and the general recommendation is to get 6 - 10 hours of sleep every
night,
depending on your individual needs and the type of physical activity you're doing.
The past often looks just like the present, except the past is usually encased in perpetual
night or something similar (like Dragon Quest VI, there's no day /
night cycle — time just changes
depending on the plot.)
The 255K theoretical value
depends on the albedo and is an upper limit which can only be reached with constant temperatures across the globe and the day /
night cycle.