How did you book SSR?
If you are booked through DVC (points or cash), you get your villa serviced every four days. So you'll need your own shampoo and conditioner since the containers they provide are small (and lots of people don't care for the product provided). They will provide toilet paper, paper towels, trash bags, dishwasher detergent, liquid dish detergent, if you need more for no extra charge. If you need additional shampoo, conditioner, shower gel, bath soap, coffee and filters, you'll need to bring those or pay for extra. In a one bedroom villa, they will provide a single use box of laundry detergent (no dryer sheets are provided if you use them). Each service day they will usually provide a single package of coffee in a filter (makes four to six cups). If you drink more, you'll want to bring your own flat bottom, Mr Coffee style coffee filters (10-12 cup coffee maker) and coffee.
If you booked through Disney Reservation Center for cash, you will get a daily full cleaning and your supplies will be replenished daily.
Since you have two separate stays, you may want to check if you are blocked into the same villa for the entire stay. Otherwise, you'll have to check out and check in, possibly to a different villa. Even if you are blocked into the same villa for the entire time, you will have to check out and in again on the last day. With a seven night stay, you don't get any full cleaning and if they keep you in the same villa, you might not get sheets changed at all since it is two different reservations (check on that when you check in). With a stay of seven nights of less, you will get your trash removed and towels replaced on day 4 (check in is day 1). If you are staying on a reservation of eight nights or more, you get a full cleaning on day 4 and trash removed and towels replaced on day 8 and then the cycle repeats.
However, with the new security checks, you will have your trash removed daily under the guise of being helpful.