1 As brown sugar contains some amount of water, it has a slightly lower caloric value by weight than white sugar: calorific value per teaspoon is 11 kcal for raw sugar, 16 kcal for white sugar.  Because of the presence of molasses in raw sugar, it has a distinct flavor that is missing in white sugar.
For example, in general: 1  Infants require about 14-15 hours a day. 2  Teenagers need about 8.5-9.5 hours on average. 3  Most adults need 7 to 9 hours a night for the best amount of sleep, although some people may need as few as 6 hours or as many as 10 hours of sleep each day.
The average adult needs about seven to nine hours of sleep each night, according to the National Sleep Foundation, but most of us don't even get that much. But getting too little sleep -- generally understood to mean six hours or less a night -- can be serious -- enough to change your genes.