It is not as recent as it seems but it does not matter when it comes to sleep unless there are new recent discoveries. I placed this as #1 because the person in the video named Jell lliff is a neuroscientist where he finds out new or unique functions of the human brain. The comments on this video also showed positive feed backs about this video.
I put this at #2 because it is made by several people and has lots of sources and notes at the end. It is a .pdf file that has lots of information about this subject.
I rate this #3 because it shows the experiment about sleep and teens education. It also mentions doctor names that are involved in the experiment but there are not that much sources in the page.
I rate this number 4 because it shows no advertisements on the script except for the bottom where there are more news stories from the website, is fairly recent, popular (from the amount of likes), and credits doctors within the script of each fact such as what they say about the topic of sleep. The information can be inserted by any contributer if the information seems believable enough.
I place this as #5 because there are a lot of white spaces between each paragraph and the only links are the ones that lead you to another web page in the website.
I put this as number 5 also because it is from the same website as the other #5 link and has the same appearance such as lots of white space.
I placed this as #6 because although the link and sources end in a .org, it is recent (April 21, 2017), has some sources that end in a .gov, and shows information that is believable. The site is not secure however and shows the login box every time I open it.