Hiya Susan,
I'm so excited for you magical vacation in August to the Disneyland Resort. There is not a 6-Day Ticket available but you can purchase a 5-Day Park Hopper Ticket and a 1-Day Park Hopper Ticket for your family members. With the purchase of your 5-Day Park Hopper Ticket you will also receive Magic Morning.
Magic Morning allows you to enter Disneyland Park one hour before the park opens on a Tuesday, Thursday, or Saturday. This is a one time use. It is strongly recommended that you arrive at least one hour and 15 minutes prior to the regular park opening. Please also note that during Magic Mornings not all stores, restaurants, attractions and Lands will be available and accessible.
If you reserve a magical room at one of the Disneyland Resort hotels, you will also be able to utilize the Extra Magic Hour. Disneyland Resort hotel guests may enter either Disneyland or Disney California Adventure Park an hour early each day of stay according to the schedule with a valid theme park ticket and room key.
I hope this helps. Please let me know if you have any other questions as your vacation approaches.
Have a magical day,
Lynette