A quote from Mihayl Csikszentmihalyi of Flow fame:
Ironically, jobs are actually easier to enjoy than free time, because like flow activities they have built-in goals, feedback rules, and challenges, all of which encourage one to become involved in one’s work, to concentrate and lose oneself in it. Free time, on the other hand, is unstructured, and requires much greater effort to be shaped into something that can be enjoyed.
As found in Deep Work by Cal Newport.
Cal suggests we more rigorously schedule our weekends instead of leaving Saturday wide open and figuring it out once we wake up. This doesn’t mean working all weekend, but scheduling your leisure like you schedule your work.