sleepers
nounUK /ˈsliːpəz/
US /ˈsliːpərz/
Sleepers are people or animals that are sleeping.
The train was quiet because the sleepers were all resting.
OTHER MEANINGS
2. Wooden or concrete beams that support railway tracks.
Workers replaced the old wooden sleepers under the train tracks.
3. Small earrings that stay in the ear without a backing.
She wore tiny gold sleepers in her ears.
4. Things that are not yet noticed but may become successful later.
The movie was one of the year's sleepers and became a big hit.