I’ve never had one and was fine. But I’m starting to ride more and was looking too invest in my butts comfort with a cushion of some kind to make longer rides comfortable for me and warmer in the winter. What do you use and like?
No, those are the styles that will slide and get hot. Here's a full sheepskin for a western saddle, they also have options that don't go down over the fenders but I haven't tried those yet so I can't speak for them.
I use this one for my kids etc. and for when I need a pad. Works really really well but it is so think and comfy it really shrinks how much room you have in your saddle so it helps to get like an inch larger than you need saddle to put it in: https://www.amazon.com/gp/product/B00HVGATIO/