A Chronic Deficit of Restorative Slumber

This page is the CodyCross answer for the clue below from Extraordinary Creatures, Group 1581, Puzzle 4 (Bridge Trolls).

Question is: A Chronic Deficit of Restorative Slumber

and the answer is: SLEEPDEBT

Word Meaning:

SLEEP DEBT — The cumulative effect of not obtaining enough sleep, especially as seen as able to be made up for by sleeping more than usual.

Definitions from Wiktionary.