Participant feedback at study conclusion
| Placebo | Zopiclone | |
| Did you feel like your sleep improved or worsened? | ||
| Improved | 9/16 | 11/14 |
| Worsened | 1/16 | 1/14 |
| Same | 6/16 | 2/14 |
| If available, would you continue to use the study medication? | ||
| Yes | 5/16 | 5/14 |
| No | 10/16 | 9/14 |
| Unsure | 1/16 | 0/14 |
| Do you feel like you were taking the sleeping pill or the placebo during the study? | ||
| Placebo | 11/16 | 3/14 |
| Zopiclone | 5/16 | 11/14 |
Data are presented as counts according to participant feedback over the 1-month trial. Data were collected on the morning of the final visit (night 30).