drowsy (adj.)
- appeasing
 - cataleptic
 - comatose
 - doped
 - dozy
 - dreamy
 - drugged
 - groggy
 - heavy
 - lackadaisical
 - languid
 - languorous
 - lazy
 - lethargic
 - listless
 - napping
 - narcoleptic
 - narcotized
 - nodding
 - oscitant
 - restful
 - sleepy
 - sluggish
 - slumberous
 - slumbery
 - somnolent
 - soothing
 - soporific
 - stretchy
 - stuporous
 - tired
 - torpid
 - tranquilizing
 - weary
 - yawning
 
Life is as tedious as a twice-told tale
Vexing the dull ear of a drowsy man.
Not poppy, nor mandragora,
Nor all the drowsy syrups of the world,
Shall ever medicine thee to that sweet sleep
Which thou owedst yesterday.
A merrier man,
Within the limit of becoming mirth,
I never spent an hour's talk withal.