Before revision: + MSLT Scores Minutes Sleepiness 0–5Severe 5–10Troublesome 10–15Manageable 15– 20Excellent
After revision: + MSLT Scores Minutes Sleepiness 0–5Severe 5–10Troublesome 10–15Manageable 15– 20ExcellentA sleep onset latency of 0 to 5 minutes means severe sleep deprivation, 5 to 10 minutes is "troublesome", 10 to 15 minutes indicates a mild but "manageable" degree of sleep debt, and 15 to 20 minutes is indicative of "little or no" sleep debt.