Hard disagree on 20 minute naps, the 90 minute one at my office in Boise is better
Tried the short power nap thing for 3 weeks and woke up foggy every single time, but a full 90 minute cycle in my car with a sunshade in the window leaves me sharp. Everyone says long naps are bad, so what is the actual cutoff where it turns on you at 45 minutes or later?