[bigbugbag]

Easy enough, the right ones are the custom molds earplugs, plugs made from and for your ear canal.

They're not cheap but they fit snugly and tight, plus they last a long time. I got mine from a recommendation from a sound tech frien. There are different kinds with filters, for example to remove the bang from a gunshot or filter out snoring but not the alarm clock or the full plug to cancel all sounds.

While taking the print for the molds I experienced total silence for the first time and enjoyed the slight tinnitus I never noticed I had.