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.
Individuals need very different amounts of sleep. Though most of the population will survive pretty well on 7-8 hours of sleep (not bed time, sleep) per night, some do well on three hours, while others need nine. To start to figure this out, look at how much total sleep time you get on weekend and vacation days. 3. Different ages need very different amounts of sleep.