| Regimental number | 488 |
| Place of birth | Kialla New South Wales |
| Religion | Methodist |
| Occupation | Farmer |
| Address | Tevern Coral, Richmond River, New South Wales |
| Marital status | Single |
| Age at embarkation | 20 |
| Next of kin | Father, Thomas Charles Sleep, Tevern Coral, Richmond River, New South Wales |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | Machine Gun Company 7, Reinforcement 7 |
| AWM Embarkation Roll number | 24/12/3 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A38 Ulysses on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 3rd Machine Gun Battalion |
| Fate | Died of wounds |
| Age at death from cemetery records | 21 |
| Place of burial | Nine Elms British Cemetery (Plot IV, Row C, Grave No. 10), Poperinghe, Belgium |
| Panel number, Roll of Honour, Australian War Memorial | 179 |
| Miscellaneous information from cemetery records | Parents: Thomas and Mary SLEEP, Teven, Via Ballina, Ne wSouth Wales. Native of Lismore, New South Wales |