The people you work with must thing you're weird as ****. Or that you're about to have a heart attack if you can't catch your breath sitting at a desk...
Not as weird as the guy next to me who used to get up and dance every hour or two. In all honesty, that's not a bad rotation for a desk job.
And yes, most people have found me weird at many jobs. Of course, they retain me and extend me on contracts, when they usually let other contractors go. Of all my methods and madness, I get the job done, especially when a project is behind or, worse yet, no one wants to do it. Although now into my 40s, I'm sure my ability to do such is only going to get more limited.
A 90 minute "power nap"??? Jesus, wtf constitutes a "normal nap" 4 hrs? No wonder you're not in peak physical condition.
My body, like most people, sleeps more completely on 90 minute cycles. Ideally one should sleep 7.5 hours/night. But if one cannot, sleeping on any 90 minute multiple -- 1.5, 3, 4.5 or 6 hours -- is most ideal. Hence why 90 minutes is the best, minimum, sleep I've learned my body prefers, like many.
If I'm unable to, then I try 15 minutes, which is more to rest my eyes, not so much my body. But that will only recharge for a couple of hours max. It's not sleep at all.
E.g., taking 90 minute power naps is the only way I survived the first week of July last year when I worked continually for over 6 days straight, fielding calls and support inquiries world-wide as an entire division. Long story, and part of the reason I resigned from that position (after 7 years with the company, the first 5 in another role). The 90 minute naps every 24, 18, 12 and eventually 6 hours by the end of the week kept me from literally becoming a vegetable, while still being able to respond within our contractual SLAs.