Shooting anything indoors will wake you up to say the least. Depending on the adrenaline the intensity of the effect may vary, but it certainly will be there. In theory, the electronic hearing protection is a good idea, but realistically its not very practical, as it will slow you down fumbling with it assuming you remember it in the first place. What was mentioned earlier about the family's hearing protection, I'd focus my plan more on getting them out or getting them to where you can cover them (and, ideally, not shoot them in the darkness and confusion). So with that said, it's going to be a sizeable boom any way you look at it, so get the gun that works for you and familiarize yourself with the noise in whatever way you see fit without deafening yourself.