college students, go for eight
During sleep, the brain organizes, sorts, and stores what we have learned and experienced that day, making it easier to recall at a later time. Sleep also helps you weed out irrelevant information and helps you make connections between your memory and information you learned that day, even if you have not made those connections while awake. If you study a little every day, you can use this natural process of sleep to gain a better understanding of the material and to retain the information more efficiently. If you don’t understand something you have read or you can’t solve a problem, look it over and then sleep on it. To sum up, to study better, more efficiently, and to increase the likelihood of learning and retaining information, get at least 7-8 hours of sleep before your exam. Go for 8!