| Clue | Source | Date |
|---|---|---|
| Being stubborn at nap time? | Wall Street Journal | 23 Jul 2020 |
| Fighting off drowsiness? | New York Times | 15 May 2016 |
| Trying to stay awake? | ||
| Crime committed by insomniacs? | ||
| Trying to stay awake? | ||
| Action that can lead to feeling bushed? | ||
| Cramming student takes Vivarin, gets charged with ... |