drowsy
1 comatose, dazed, dopey (slang) dozy, drugged, half asleep, heavy, lethargic, nodding, sleepy, somnolent, tired, torpid
2 dreamy, lulling, restful, sleepy, soothing, soporific
1 alert, awake, bright-eyed and bushy-tailed, full of beans (informal) lively, perky