SleepLag 

SleepLag shows how late you went to bed compared to your usual time.
Enter your usual sleep time and actual sleep time (HH:mm, 24h). Instantly see your sleep lag/delay duration—even across midnight.

Features:
• Input usual and actual sleep times
• Instantly see your sleep delay
• Copy/share the result
• 1-tap reset
• Strong 24h-format and value checks

See your sleep pattern—catch delays and improve with SleepLag!