1. most drowsy or tired; most in need of sleep
Usage: superlative form of sleepy
2. most quiet, inactive, or lacking in activity
Usage: used to describe places or situations

Examples

• She was the sleepiest person in the morning meeting.
• The baby looked sleepiest right after his bath.
• This is the sleepiest town I’ve ever visited.
• The sleepiest time of day for most people is mid-afternoon.
• Even the sleepiest students perked up during the exciting experiment.
• The sleepiest village came alive during the harvest festival.