| Clue | Source | Date |
|---|---|---|
| Sleepy start | Wall Street Journal | 22 Aug 2023 |
| Sleep: Prefix | ||
| Sleep: Prefix | New York Times | 16 Feb 2020 |
| Sleep: Prefix | ||
| Sleep (prefix) | ||
| Sleep: Pref. | ||
| Sleep: Pref. | ||
| Sleepy head? | ||
| Sleep (prefix) | ||
| "Sleep" word form | ||
| Sleep: Comb. form | ||
| Sleep: Comb. form. |