This comes from Mike Gowen, who has taken part in answering a question on Quora about the reason Path added sleeping1 as one of its five moment types:
“It also has an interesting (and possibly unintended) side effect, in that it positions itself as the first app you are compelled to open when you wake up.”
Compelled might be a strong word…but then again it is happening for me since the update.
1 Dave Morin, CEO and co-founder of Path, mentions that there is a possibility of an alarm clock being part of the app in the future in the Quora thread as well. Compelling, indeed.