Advantages and disadvantages of sleeping together is not recommended, especially on brain performance. This was demonstrated by a study that followed a group of men and women for five years. Periodically, the researchers interviewed the participants to find out the memory, vocabulary, and logic test.
The researchers found that people who sleep around 7 hours at night to have the highest test scores for these tests than those who slept less than 6 hours or people who sleep more than 8 hours.
Top Gear Season 17 Episode 4
True Blood Season 4 Episode 4
