drowsy 
/ˈdraʊzi/ adjective
drows·i·er; drows·i·est /ˈdraʊzi/ adjective [also more drowsy; most drowsy] 1 : tired and ready to fall asleep
▪ I started feeling drowsy [=sleepy] and decided to take a nap. 2 : causing you to feel relaxed and ready to sleep
▪ We spent a drowsy afternoon by the pool.
▪ I started feeling drowsy [=sleepy] and decided to take a nap.
▪ We spent a drowsy afternoon by the pool.
— drows·i·ly /ˈdraʊzəli/ adverb
/ˈdraʊzəli/ adverb— drows·i·ness noun [noncount]
▪ These medications may cause drowsiness.
▪ These medications may cause drowsiness.
