DORAs. Rather than being sedatives, they directly target receptors in your brain that make you think you should sleep. I think the oldest one came out in like 2011.

It's kind of like neuroscientists found the trigger to tell your brain "we're going to do a clean shutdown now, trigger transition to runlevel 0".

Quiviviq, Dayvigo, Belsomra. All still on-patent, so they don't have generics and are pretty expensive (like $1000/mo if your insurance doesn't cover them). A lot of doctors won't recommend them in practice because most of their patients won't yet be able to get them covered.