What's going on is causing a lot of restless nights for a lot of people so it's hard to know at your stage of the quit whether it's the virus or quitting that's causing your insomnia. My guess is it's a little of both.
The quitters insomnia for me lasted a couple of months if I remember correctly. And I know you don't want to take an OTC sleep aid but I found just taking one pill a couple times a week as needed was just enough to take the edge off and give me some much needed rest. You could also try edibles if it's legal in your state, a hot toddie, or even a relaxing bubble bath before bed.
You're doing great though and look at all the money you've saved already! 😊