drowsiness

From drowsy +‎ -ness.

• (General American) enPR: IPA^(key): /ˈdɹæʊːzinəs/

• Audio (Southern England):

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drowsiness (usually uncountable, plural drowsinesses)

1. The state of being drowsy.
   • 2009 March 17, Donald G. Mcneil Jr., “After a Stroke, Freeing Muscles With Botox”, in The New York Times‎^[1], archived from the original on 30 June 2017:

     And most neurologists are in the habit of prescribing antispasticity drugs like tizanidine and baclofen, which are oral and inexpensive, but which cause drowsiness and weaken every muscle in the body, not just the target ones.