My mom made my last one. It was ok, but I sold the boat.

I need to learn how to sew.

On my new boat, I don't have one. I roll up the sail, unhook the outhaul, slide it off, and stash it below. I think it takes less time to take it off and stash it below as it does to put a cover on it. Below, it is out of the sun and rain, like it would be with a cover. And, while at dock, there is that much less windage should the boat experience a storm at dock.

On the rare occasions I sleep on the boat, I figure it is night and therefore less UV so it is ok to leave it on the boom uncovered.

I wonder why main covers are made of such heavy fabric. Why not something like spinnaker/tent fly nylon or frog tog stuff? The canvas like stuff typically used might be just on the edge of what a normal sewing machine could handle, but the cover could be made light and easy.

My mom worked at the fabric store part time, and did side projects for people, mainly prom dresses and that sort of stuff but, there are people that seamstress for money, and this would be well within the realm of someone like that.

If I wanted a sail cover now, I'd go to the guy in town that makes boat covers, repairs sails, and races with our club occasionally. Hosts a party every year for the club too, so, yeah, tossing him a couple hundo would be cool. https://www.shipshapecanvas.com/boat_canvas.php I had him replace a window in a sail once, he did good work but it took a while.