stuporous (adj.)

• cataleptic
• comatose
• doped
• dozy
• dreamy
• drowsy
• drugged
• heavy
• languid
• lethargic
• napping
• narcoleptic
• narcotized
• nodding
• oscitant
• sleepy
• slumberous
• slumbery
• somnolent
• soporific
• stretchy
• yawning