During the Middle Ages, bubonic plague was known as the Black Death.. During that time many people became sick and died of pneumonia when the bubonic plague bacteria infected the lungs, called the pneumonic plague which saw the spread of the disease bacteria through coughing and sneezing.
From experience with my own kids as well as asking some other moms and doing some research on popular baby websites, it seems to be the average time a baby sleeps in their bassinet is approximately 3 months or around 9 weeks â 13 weeks.
Here are the new recommended sleep duration ranges for each age group: 1  Newborns (up to 3 months old): 14 to 17 hours a day. (Previously, the recommendation was 12 to 18 hours daily.) 2  Infants (4 to 11 months): 12 to 15 hours. (Previously, the recommendation was 14 to 15 hours.) 3  Toddlers (ages 1 to 2): 11 to 14 hours.