Try having for instance, as I have, a neighbour who lives immediately upstairs in flats with floors 100 years old. Old Victorian houses converted into flats (apartments to you).
So he has bred. He has a new wee innocent babb and a wifey up there. The bab cries alot. So it's like every two hours. I think they're teaching it to sing. Next it'll be teething.
Best bet is to put your head down approx 10 or 11pm and just stay in bed till 7am. Try to get 8 hours straight. Don't get up, stay horizontal even if you can't sleep, just attempt to zen. Obviously that's not possible but try.
It's 9:15pm here now and I'm trying to calm down for 10pm and hit my bed.
You could try meditating. Turn off the news. Shut down your computer.
Have a nice bath. Or a slow dance. Put on comfy bedtime clothing. Some hot chocolate? Lie down. Attempt to dream. Try to shut down and relax for 8 hours.
xxxL