This is information from the Bonnaroo website, listed under the 'Camping FAQ'. It isn't very prominent, so I thought I'd repost it here:
"This year, in response to your requests, we will be providing a Family Camping Area on-site. We want Bonnaroo to be a place for people of all ages, and hope that providing a special area for parents and their small children will create a better festival experience for all. The family camping areas will feature some limited amenities for young children. There will be a sandbox, and a tent manned by KidzJam, which will offer some fun activities for kids.
Please note that the family camping area is reserved for families only (Families with children 16 and under). We ask that all campers in this area respect the family atmosphere by acting in a child friendly manner and by keeping noise levels to a minimum after dark. Access into the Family Camping area will not be controlled, but there will be security personnel located at at nearby POD 7 should you have any issues that require assistance.
The Family Camping area will be identified on the maps you will receive as you are processed through the tollbooths. You will also be given a family area marking on your vehicle to show parking staff and law enforcement. The best way to get to Family Camping is to enter the site from the west either at Exit 112 from I-24 or from Bushy Branch West. You may be directed by the police to Bushy Branch East. If that happens, get the family camping marking, and then you may be re-directed to Bushy Branch West depending on traffic conditions. There will be signs directing you to the Family Camping Area. Parking staff will also direct you to those areas.
Any vehicle who does not have a Family Camping marking will NOT be allowed to park or camp in the family camping area - Even if you are a relative! Also, please note that space in the Family Camping area is limited, and spaces will be filled on a first come, first served basis."
FAMILY CAMPERS: REMEMBER TO GET YOUR FAMILY CAMPING PASS ON YOUR CAR WHEN YOU ENTER.