Sleep __, Dulled Senses Immediately on Waking

This page is the CodyCross answer for the clue below from House of Horrors, Group 1103, Puzzle 5 (Uninvited Guests).

Question is: Sleep __, Dulled Senses Immediately on Waking

and the answer is: INERTIA

Word Meaning:

INERTIA — (physics, uncountable or countable) The property of a body that resists any change to its uniform motion; equivalent to its mass.

Definitions from Wiktionary.