I probably should be worried about this. I'm sure I'll lose sleep over it!

Oh great. 

https://www.concordia.ca/news/stories/2022/09/06/insomnia-increases-the-likelihood-of-memory-decline-in-older-adults-according-to-new-research.html?c=/news/archive

Insomnia increases the likelihood of memory decline in older adults, according to new research

Postdoc Nathan Cross says a huge longitudinal study shows the psychological disorder is an important comorbidity for dementia and other cognitive impairments