unstartingadj.
Etymology: Previous versions of the OED give the stress as: unˈstarting.
the world > physical sensation > sleeping and waking > sleep > [adjective] > type of sleep > deep or unbroken
1748 S. Richardson VI. ii. 9 Unbroken, unstarting slumbers.
This entry has not yet been fully updated (first published 1926; most recently modified version published online June 2019).