Although market never rest, trader need rest. I think technology nowadays really help people because there are a lot of apps in playstore that can help us to see the price of a coin in market, or maybe in phone we can open the market if only want to see how was our order although not in front of PC.
A tired trader is an ineffective trader, I know that day traders would like to look at their screens 24/7 but that is simply not possible, so the best thing to do when we are tired is to take a rest and do something we enjoy a lot, that way you will recharge your energy and you will be fresh to trade the markets in no time at all, just make sure that whatever you enjoy does not consume even more of your energy as it will be impossible to trade if you are even more tired after you attempted to relax.
Catching up with other things that gives you some relaxations will help you to strive back, most short term traders stress itself whenever they've seen that the market is not favoring their position in order to lessen the burden they've needed to find some other activities to freshen their mindset and recreate another strategy. It's best to find additional activities that will keep your mind active will be more helpful to keep adjusting for the best outcome of your business inside trading.