Regarding masks and heat...get yourself some surgical masks or the knock off "KN95" masks from China. They are MUCH easier to tolerate, especially in the heat.
I took my kids to Target the other day as a test of wearing masks in public (they are both autistic). One kid did fine. The other had a LOT of sensory problems (itching, hot, sweaty face). We were using homemade cloth masks. It resulted in a meltdown for one son. A bad one, but he kept it together until we got to the car. I felt awful as he was walking through Target with tears in his eyes.
I had purchased surgical masks and KN95 masks on ebay at the start of the quarantine. Yesterday, I had my son try them. The KN95 mask was comfortable for him! He wore it in the house for an hour to get used to it and said it was "nice and cool." We will trial it outdoors on a warm day soon, but I'm hopeful.
I think I'll grab some more of those and we will use those for him for going out from now on. And I'll definitely use those in the parks rather than cloth masks.