INERTIA

Inertia

noun: a tendency to do nothing or to remain unchanged.

synonyms: inactivity, inaction, inactiveness, inertness, passivity, apathy, accidie, malaise, stagnation, dullness, enervation, sluggishness, lethargy, languor, languidness, listlessness, torpor, torpidity, idleness, indolence, laziness, sloth, slothfulness

That Thursday feeling. Roll on the weekend.