| Clue | Source | Date |
|---|---|---|
| In "David Copperfield" it's called "a weight that brooded on my wits" | ||
| Frightening vision | LA Times Daily | 17 Apr 2024 |
| Troubling reverie | New York Times | 19 Apr 2017 |
| Troubling reverie | ||
| Light fright? | ||
| Fright when it's light? | ||
| Wakeful fright | ||
| Bad dream experienced while awake | ||
| Waking bad dream | ||
| Fright not by night | ||
| Distress while awake: Med. | ||
| Oppression while awake: Med. | ||
| Relative of a bad dream. |