| Regimental number | 4694 |
| Place of birth | Ballarat, Victoria |
| School | Ballarat College, Victoria |
| Religion | Church of England |
| Occupation | Grazier |
| Address | Longwarry, Gippsland, Victoria |
| Marital status | Single |
| Age at embarkation | 44 |
| Next of kin | Father, Lieut-Colonel J T Sleep, 2 Nolan Street, Ballarat, Victoria |
| Previous military service | Served in the [tullebardens] 2nd Scottish Horse Regiment, South Africa. |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Private |
| Unit name | Light Horse, February 1918 Reinforcements |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board SS Port Darwin on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 4th Light Horse Regiment |
| Other details from Roll of Honour Circular | Served as a Lieutenant in the 13th Australian Light Horse and in charge of a machine gun. |
| Fate | Died of disease |
| Miscellaneous details (Nominal Roll) | *Given name Harry Vivian |
| Place of death or wounding | Egypt |
| Age at death | 48 |
| Age at death from cemetery records | 48 |
| Place of burial | Cairo War Memorial Cemetery (Row Q, Grave No. 231), Egypt |
| Panel number, Roll of Honour, Australian War Memorial | 4 |
| Miscellaneous information from cemetery records | Parents: Joseph and Janet SLEEP. Dies of pneumonia |
Postal Address:
Po Box 7916
Canberra BC 2610, Australia
Street Address:
Northcott Drive,
Campbell, ACT 2600
