If I could wear any kind of hearing protection to suppress sounds in my head, I would double them up....
Here are a couple of tables on noise that helps put it into perspective: Anything over 140 will permanently damage your hearing. I've been lucky and have used hearing protection most of my life with firearms and
so far do not show signs of impaired hearing unless my wife is calling me. I use muffs when hunting and don't find them any more cumbersome than setting up a cross stick or bipod for a shot. I use Walker passive 34dB while hunting and along with ear plugs at the range which will provide close to 40+ NRR. Most standard muffs are only 22-24 NRR and although they help, they fall far short of protecting your hearing. A gunshot is well in excess of 140 dBA and you really need to get the NRR of at least 30 to reasonably reduce the noise to a level that will not result in permanent damage. Suppressors reduce anywhere from 20-30 dBA depending upon too many variables to list. They help immensely but still do not get the noise level down to safe no impairment level. Here is a really good article on firearms suppressors and effect upon hearing.
https://leader.pubs.asha.org/doi/10.1044/leader.AEA.23032018.18
Let's assume you wish to get to 90 dBA to insure no impairment; what do you have to do to reduce the noise to that level? Basically dual protection is only way I have ever seen work. Whether it is with a suppressor or with high NRR muffs, you need to
double up to insure you are fully protected. If you are shooting with children, please double their protection up for their future.
Noise suppression is not linear so when looking at charts and use of NRR rated hearing protection, there is a calculation to use to provide the actual level of protection.
Bottom line, any hearing protection is better than none at all.