Best Way to sound proof your walls/floors while house hacking

[Michael Doherty]

Hi all,

My girlfriend and I have been house hacking and sharing walls with tenants for about 4 years now. It's been great, we have saved a lot of money and our portfolio has grown because of it. However, the 11pm footsteps/ moving noises above you while your trying to sleep is starting to get real old. We are stuck on the second floor and have the 1st and 3rd floor rented out on year leases. Both sets of tenants are great, it's nothing against them for 'being too loud'.... you're just naturally going to hear everything going on at all hours. 

Instead of just pulling the trigger and buying a single family house, I thought of trying to sound proof the walls/ceilings. We like where we live its just getting bit too noisy. Has anyone else solved this issue by using some sort of insulation you can put between the joists in the ceiling to minimize the footstep/moving around noises you inevitably hear daily? 

Would love to hear what others have done to solve this issue. Perhaps... it is what is is and it comes with the territory.