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.