Kept falling in and out of it [sleep] like out of a boat or a tipping hammock.
![Kept falling in and out of it [sleep] like out of a boat or a tipping hammock.](http://cdn.quoteddaily.com/images/rose-tremain/kept-falling-in-and-out-of-it-sleep-like-out-of-a-boat-or-a-tipping-hammock.jpg)
Kept falling in and out of it [sleep] like out of a boat or a tipping hammock.