As for myself, one of the next gadgets on my buying list is the zeo personal sleep coach (AFAIK there are no affordable consumer-level competitors at the moment): http://www.myzeo.com/sleep/
Would love to hear from people with hands on experience with it.
For the academic inclined, there is some awesome body of work done by the Affective Computing group at Media Lab: http://affect.media.mit.edu/projects.php?id=3162
As for myself, one of the next gadgets on my buying list is the zeo personal sleep coach (AFAIK there are no affordable consumer-level competitors at the moment): http://www.myzeo.com/sleep/
Would love to hear from people with hands on experience with it.