a. 想睡的

[ adj ]
half asleep
<adj.all>
made drowsy by the long rideit seemed a pity to disturb the drowsing (or dozing) professor
a tired dozy child
the nodding (or napping) grandmother in her rocking chair

Dozy \Doz"y\, a.
Drowsy; inclined to doze; sleepy; sluggish; as, a dozy head.
--Dryden.