Rivastigmine (sold under the trade name Exelon) is a parasympathomimetic or cholinergic agent for the treatment of mild to moderate dementia of the Alzheimer's type and dementia due to Parkinson's disease.
Quick Answer. According to the University of Washington, cows sleep for approximately 3.9 hours per day, meaning that they spend about 16.9 percent of the day sleeping. Adult humans sleep for approximately 8 hours per day, which represents 33.3 percent of the day. Human infants sleep approximately 16 hours per day.
Women should try to increase their sleep during the first trimester. Doctors at MayoClinic.com suggest adults get an average of seven to nine hours of sleep per night. Because pregnancy increases the demands on a womanâs body, especially during the first trimester, pregnant women may need more sleep.