Paired with the best standing desk or best standing desk converter that we've tested, these under-desk mats provide welcome relief when sitting or standing for long periods of time. In our view, the Vari ActiveMat is the best standing desk converter that's reasonably priced, simply designed, and comfortable to use.

Bad news for standing desk zealots: you may not be as superior to your seated counterparts as you think. Researchers at the University of Sydney have found that standing desks do not seem to reduce the risk of heart disease — and they may actually increase circulatory issues like varicose veins.