Sleeping box/cabin that blocks step (footfall) sounds from above-Acoustics Forum-Acoustic Fields Forum

Hi everyone!

I am a pretty sound sensitive sleeper.
I already successfully “blocked” sounds from the street, so my only concern (but a big one) is the noise from above, that my neighbour produces with steps and shutting doors.

Dennis, I know that you always recommend to record and analyse the sound for at least one week, but isn’t my case a really common one? It’s the typical low frequency noise from neigbours above.

So, I was thinking about a sleeping box (like a sound”proofed” coffin).

1. It has to be decoupled from the ground (what is the best way to achieve that? E.g. are these black heavy rubber mats from the gym sufficient?

2. Probably the best way to block the low frequ. noise is to use plywood with layers of rock wool in between. Right?

3. How can I solve the ventilation problem? There are active ventilators, that make a ~20db noise. Can I lower that with e.g. a passive ventilation (like a maze that traps noise, but lets air flow, or these ventilators that use the difference in pressure from within and outside of the box)?

Thanks in advance for every answer!
Paul