Communication error when waking from sleep mode

Sometimes, when I wake up my Switch that has Minecraft open from Sleep mode, a box will show up and say there has been a communication error. When I click OK, the game still runs normally though. Well, it doesn't seem to be able to stay connected to my Switch or Microsoft account for more than five minutes. I always have to put my Switch on sleep mode since Minecraft doesn't have a proper pause feature and I don't want to come back to see my character dead.