Keywords: asleep, sound asleep, sleep (soundly)
Sign Definition
As a Verb or Adjective
                                            1.  To be sleeping deeply. Idiomatic English = (be) sound asleep, (be) dead to the world, sleep soundly
                                          
                                          
                                        
                                            2.  To fall asleep quickly and completely and then to sleep very deeply because you are very tired.
                                          
                                          
                                         
                  
                      