Sleeping in the Sukkah

What is the Rav’s approach to sleeping in the Sukkah? Is this something one should push themselves to do? What if one is in the category of איסטניס where small things such as mosquitos, noise, heat (EY) or cold /bugs (Chu”l) prevent a good night’s sleep?

Thank you!

You should try to sleep in the Sukkah. There are many examples, some of which you listed, that allow you to not sleep in Sukkah