How do renters solve the problem of noisy neighbors at night? Is there any good way?

It's simple. Buying a pair of noise-proof earplugs can solve the problem. Among them, the zero-listening anti-noise guardian is the best one. I can't hear anything in my ears. It's very comfortable to wear. The most important thing is that it's only a dozen dollars a pair. It has been used for half a year, and it is still quite cost-effective. I bought mine on Taobao, and some local pharmacies seem to have it. I hope it helps you.