Yes, they do offer babysitting from 10pm to 3am. Here is what their web site says...
Is there babysitting on board?
Babysitting is available every evening from 10:00pm to 3:00am in the children's playroom for children 4 months of age to 11 years of age.
Babysitting is not available during Camp Carnival's scheduled activities, which run from approximately 9:00am to 10:00pm daily.
In addition to the evening babysitting, for infants under the age of 2, babysitting is available on port day mornings from 8:00am to 12:00 noon; if the ship arrives later in the day, babysitting is available in the afternoon until 6:00pm.
Babysitting is done on an advance sign-up basis with the Youth Staff. This is done to ensure that enough staff are scheduled to provide this service.
All babysitting is done in the children's playroom, with a "slumber party" type atmosphere. Movies and cartoons are shown. Pillows, blankets, and cribs are provided.
It is against company policy to provide babysitting in the guest's stateroom.
Babysitting is provided for children 11 years of age and younger. It is not mandatory for infants or toddlers to be potty-trained in order to avail themselves of the babysitting services. Parents must provide the youth counselors with diapers and toiletries to be used for their child.
Babysitting fees are due upon pick-up and paid directly to the Youth Staff on duty. Payment must be made with the Sail and Sign Card; cash is not an acceptable form of payment.
$6.00 per hour for the first child in the family
$4.00 per hour for each additional child in the same immediate family
on Carnival Conquest
July 2005: Carnival Pride
Summer 1985: I can't remember, I was still a kid...:-)