| Schlafsucht | hypersomnia |
| Schlafstadt | bedroom community |
| Schlacht | battle slaughter |
| Schlafsack | sleeping bag |
| Schlaglicht | spotlight |
| Schlauch | hose tube |
| Schlucht | ravine gorge canyon |
| Schlaffheit | flaccidity |
| Schlafkur | narcotherapy |
| Schlafmohn | opium poppy |
| Schlafsaal | dorm |
| Schlafsand | sleep |
| Schlafsofa | sofa-bed |
| Schwindsucht | pulmonary tuberculosis |
| schlaf gut | sleep tight |
| Schacht | well shaft miners' association |
| Schatzsuche | treasure hunt |
| Schiffsküche | galley |
| Schlafmütze | night cap sleepyhead sleepy head |
| Schlafrock | dressing gown |