Ditto. For me, the 20 minute investment in a post-lunch nap pays back manyfold in increased productivity (to say nothing of health and general well-being) for the rest of the day.
Finding a place to nap in an office an environment can be tricky, but if you start thinking of your nap as an important work tool and not an embarrassing indulgence, you can usually find a way to make it work. Drop a few bucks on a good pillow, blanket, sleep mask, and/or white-noise headphones -- whatever's important for you -- to keep at your desk. (For me, the sleep mask is critical. YMMV.) Get creative with your sleep position -- couches are great, but I've made it work lying on the floor with my feet up on my office chair (suitably chocked so it won't roll away). The key point is, don't be afraid to ask the work environment to adapt to your nap, rather than vice versa.
I just have an incredibly hard time imagining how I could nap on a yoga mat in my cubile without everyone else stopping to watch it like a circus, and my manger wanting to discuss why I am literally sleeping on the job.
There is a class of bosses who would accept that (obviously if you also stay twenty minutes longer & are salaried, they have nothing to lose). There is also a class of bosses who would not care how much sense it did or didn't make.
In an open office if it wasn't part of the company culture, few bosses will accept it. The political ramifications of having your employees sleeping when the VP walks by are too great (and, often, the manager won't even have the option to explain why it's good). I fully understand the benefits of napping, but I would demand employees to "get a room", for their sake and mine.
You can also sort of nap in a bathroom stall. It's difficult to fall asleep completely, but closing your eyes and resting your face in your hands, with you elbows resting on your legs, for about 5-10 minutes, can help you feel rested and refreshed. And nobody will ever know.
Finding a place to nap in an office an environment can be tricky, but if you start thinking of your nap as an important work tool and not an embarrassing indulgence, you can usually find a way to make it work. Drop a few bucks on a good pillow, blanket, sleep mask, and/or white-noise headphones -- whatever's important for you -- to keep at your desk. (For me, the sleep mask is critical. YMMV.) Get creative with your sleep position -- couches are great, but I've made it work lying on the floor with my feet up on my office chair (suitably chocked so it won't roll away). The key point is, don't be afraid to ask the work environment to adapt to your nap, rather than vice versa.