It would seem so. I checked crowd calendars and saw that it was moderate the week of the 6th- figuring it would be more crowded the weekend before with Wine and Dine, and the weekend after for the holiday. I had never even heard of Jersey Week until after we picked our dates. I know those calendars aren't an exact science, but sheesh. They may release more rooms as we get closer, but I do not like winging it. Worst thing that happens is 4 adults are jammed into a room at the Grand for 3 nights and I have to change my flights to leave a day earlier, but it's making me so anxious!
Okay, you know where you stand, so you need to make a plan to deal with the Room situation. First, we travel as extended family and with with a close friend often, and we have stayed at the Grand doing so. You know that you have some challenges ahead, and from what I read, your concern is actually with your partner, not your friends, so I think he is where you start.
They sell nose strips for the snoring problem, and I would buy some now, and see if he can use them. Also, if TV at night is his issue, he may need to figure out a work around. Sharing space is a matter of knowing how to respect those in your space, so these are areas to address first, I believe.
I would also share your concerns with yoru friends. How do they feel about the close accommodations, and do they have any thoughts? As I said, the sharing can be problematic, however if you are honest ahead of time, you may find that yoru friends are already aware there will be considerations and will have suggestions. The showering and personal time are where courtesy really comes into play. We tend to book Club Level when we are extended family, and we use the lounge as a little extra space in the morning and again when folks are showering and getting ready to head back out.
I htink you can manage three nights, but just plan ahead. Please do nto ruin your enjoyment over something that at this point you may not be able to change.