Correct -- the abstract will be included in a special issue of Circulation: http://circ.ahajournals.org/content/136/Suppl_1/A21042

The study was presented at the American Heart Association's Scientific Sessions earlier today. We included some details beyond what appears in the TechCrunch article in a blog post here: https://blog.cardiogr.am/screening-for-hypertension-and-slee...

I'd expect a more mature version of this work to appear in a medical journal, but that often takes 6-12 extra months.