Hitting 50 often means early wake-ups—maybe around 4:30 am—and a harder time...

https://www.herald-dispatch.com/sponsored/why-sleep-changes-after-50-and-what-helps/article_99e87611-bd1d-4af5-aaea-9210420304ba.html

Hitting 50 often means early wake-ups—maybe around 4:30 am—and a harder time falling back asleep