| Answer | Crossword Clue |
|---|---|
| EEG | Sleep research chart |
| REM | Sleep-research abbr. |
| EEG | Sleep research tool, briefly |
| Answer | Crossword Clue |
|---|---|
| EEG | Sleep research chart |
| REM | Sleep-research abbr. |
| EEG | Sleep research tool, briefly |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.