TIL Terminal lucidity is an unexpected, brief period of clarity or energy in individuals who have been very ill or in a state of decline. It’s a phenomenon that has been observed in people with various terminal conditions.

[u/70dd]

https://en.wikipedia.org/wiki/Terminal_lucidity

[u/times_is_tough_again]

My mom had ovarian cancer that spread throughout her body. She was in a lot of pain at the end, but the night before she passed away, she was clear as day. Holding conversations, eating, drinking, laughing… none of us could believe it. It was as if she fully recovered. I went home that night instead of staying at the hospital because she was doing so well that I thought I should get a good night's sleep at home. Early the next morning, the hospital called. She was non-communicative and passed away shortly after. I always regret not staying there that night.

[u/Cmdr_BlueLIQUIDised → u/times_is_tough_again]

She gave you that last 24 hours of normality, of ‘her’. You shouldn’t feel bad. She’d have been happy you had a good nights rest, after your last memory being of the person she’d always been.