What is realistic?

[Catrin]

I'm not comfortable for 13 hours anywhere.
Not my couch, certainly not my desk, not even my bed.

On the bike, I think it has much to do with fitness in addition to the saddle.

This is what I have been thinking. At some point there is just going to be discomfort - regardless - so this is something to consider as well. I will demo one more saddle and will then make my choice and then we will see.
Thanks everyone, we will see what happens this next week.