| sleeper |
a person or thing that sleeps. [3 definitions] |
| sleeping |
the state or condition of being asleep. [4 definitions] |
| sleeping bag |
a large, usu. zippered bag that is warmly lined, in which a person can sleep outdoors. |
| sleeping car |
a railroad car that is equipped with sleeping accommodations. |
| sleeping pill |
a pill or tablet containing a drug that induces sleep. |
| sleeping sickness |
a usu. fatal infectious disease found in tropical Africa, characterized by fever, weakness, and tremors, and transmitted by tsetse flies. [2 definitions] |
| sleepless |
passed without sleep. [2 definitions] |
| sleep mode |
a power-saving mode of operation to which a computer or other machine reverts when idle, in which power to the display and to other nonessential parts of operation is deactivated. |
| sleep over |
to stay through the night at the home of a friend or relative. |
| sleepover |
the activity, most often engaged in by young children, of staying the night at a friend's. The activity usually involves staying up late playing and talking as well as sleeping. |
| sleep tight |
to sleep well or soundly. |
| sleepwalking |
the act of walking around during sleep; somnambulism. |
| sleepwear |
clothes worn in bed; nightclothes. |
| sleepy |
needing or tending to sleep; drowsy. [2 definitions] |
| sleepyhead |
(informal) someone who is sleepy. |
| sleet |
freezing rain. [2 definitions] |
| sleeve |
the part of a shirt, dress, or the like that covers the arm partly or completely. [3 definitions] |
| sleeveless |
combined form of sleeve. |
| sleigh |
a light, horse-drawn, open carriage on runners that is used to carry people over snow and ice. [2 definitions] |
| sleight |
cleverness, as in deception; deftness. |
| sleight of hand |
skill with one's hands in confusing or deceiving onlookers, as in juggling or magic tricks; legerdemain. |