I've been doing a 20-hour 3 day work week (50% of total pay) for a few years now and I love it. I'm outperforming a full-time colleague in total output.
Edited to add that the 3 day work week totals 20 hours.
Edited to add that the 3 day work week totals 20 hours.
I guess and hope that simply directly asking for this is another strategy (and what I plan to do if I ever lose this job); otherwise, performing the above sort of misdirection, consciously, might also help justify the exception for management and peers.
No backlash or retaliation so far after more than 2 years.
I do my required work in 20 hours most weeks. I spend the rest of the 40 hour work week resting, learning, and working on myself. I am careful not to publicize this because I am concerned at backlash from colleagues who find they have to spend more time than me.
People work at different paces and provide different value to the company for many reasons. I may be efficient and effective, but I tend to burn out faster, hence the rest time.