Should you wake them? http://www.bbc.com/future/story/20120208-it-is-dangerous-to-wake-a-sleepwa?selectorSection=health

A question you have asked many times. maybe this is the answer. http://www.bbc.com/future/story/20120522-suffer-from-sleep-shudders

http://www.bbc.co.uk/news/uk-england-hampshire-17702463

http://zorbstudios.110mb.com/pointless-chat/?page_id=159

You might have to register but it does have excellent summaries.
Not for all the studies but many.

http://www.guardian.co.uk/life/feature/image/0,13030,938137,00.html


For one of the studies in psychology in the areaaof individual differences you might want to find out what your brin type is.
Check it out.

http://www.bbc.co.uk/health/physical_health/conditions/autism1.shtml

https://mail.google.com/mail/?shva=1#spam/136401b0174ef789

Check it out it might be useful.
Janet