I've had sessions like that. It's helped our relationship. Even though I might wish I'd done something "more productive" in the moment... in the long run, I look back on some of those as my most authentic sessions, the ones that have helped me feel.... messy and ok with it.

Hope your weekend and Monday session go well. I imagine she still finds you a pleasure to work with- my own jokes I'm a challenge she enjoys when I get a bit "snotty"- you wouldn't want yours bored, would you?

(P.S. I'm often seriously sleep deprived, so I know what you mean I think about that "done" spacey, hard to talk, hard to be present feeling. My therapist hasn't minded at all, and we seem to do good work consistently, so... I try not to judge it.)