Best idea is to move the hell out of there 🏃‍♂️🏢

If the building isn’t solid enough already to isolate noise and prevent shaking, then there’s little that you can do.

I’m already tried most all suggestions. Bed away from wall, low bed frame, made of wood, not metal, anti vibration pads. This is an old apt filled with addicts, mental health issues. No job, on ssi, can’t move, unless I want to be homeless again. Trying to make what I have works. Only response I got, haven’t tried, was platform on springs, rollers. Tks to everyone.

Oh, talking to neighbor, landlords, not applicable. Cops, screaming, fights breaking out, meth heads, everyone smoking cigs in their apartments… someone with anger issues simply slamming doors … it can be so much worse. Trying to cope best I can

Dampers like those used for washing machines for your bed and while you are at it maybe put some gasket or nitrile tape in between your neighbours door as well.

Maybe obvious, but have you tried to talk to the neighbor?

In my previous apartment I had a shitty door that was hard to close without slamming it, and I didn’t realize how much it disrupted my neighbors when I slammed it to close it. Instead I started to turn the lock while closing it, which worked perfectly.

If you have access to the door, even briefly, there are transparent sprays that make a coat of rubber like substance on stuff

Get it in the crqck of the door, near the joints and around them

I think this is one

https://www.amazon.com/Design-Engineering-050220-Deadening-Vibration/dp/B001URKV0G

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put rubber stoppers (cabinet closure style) on the doors around the building.

Maybe something like this?

Maybe try making bed slams shake your doors.

I feel for you. I have shitty neighbors too.

What about covering up the sound with more sound? Turn on a rumbly fan, washing machine, wear headphones, etc

Man that really sucks.

I’m guessing that it’s not reasonable to get the guy to chill or get the builsing tuned up so that it doesn’t transmit so much vibration.

The “ideal” wouls be a platform that can move laterally (and a little vertically) but that damps the vibration. Imagine a platform the bed sits on, but with springs below it. Or something fancier that acts like a spring but uses another mechanism. This way, the bed will move less initially (the floor will move and the bed will have to “catch up” based on the weaker + delayed pull of the spring) ans be damped.

Keep in mind that I haven’t tested any of this, but here are a couple ideas.

1. Casters/rollers, each of them on a little square (maybe silicon?) that keeps them from rolling too far. This will have weak lateral damping ans probably zero vertical. Imagine something like this but you actually buy one larger than specified so it can still move a bit: https://www.amazon.com/Yupeak-Bed-Stopper-Furniture-Pack（Black）/dp/B07MPR999F/

2. Put a box spring under your mattress and literally attach springs on the bottom and sides so that it only contacts your bed frame / floor (not sure what your setup is) via springs. Strong springs so that they don’t bottom out when you lay on the bed but not so strong that they don’t damp enough. Probably bed springs, basically.

3. A second soft mattress to put under your mattress. It’s basically just a set of springs and is already the right size. This is probably the best option.

Also, if your bed is next to the wall, move it 2-3 inches away from it.

Hope this helps!