The police discovered a 'sleeper cell' [=a small organized group of spies] that had been operating in the city for years.
Our guests will use the 'sleeper sofa'. [=a sofa that folds out to form a bed]
a light 'sleeper' [=someone who does not sleep well and wakes up easily]
(..) YUSUF: That's the clever part. I customised the sedative to leave inner-ear function unimpaired. That way, however deep the sleep, the sleeper still feels falling. Or tipping. The trick is to synchronise a kick that can penetrate all three levels. We could use a musical countdown (..)2010 Inception