Dear Teachers,<br/><br/>1. Does "sleep tight!" mean "good night!"? and is it common? and we just say this to our loved ones, right?<br/><br/>2. Have fun! buddy.<br/><br/>- Same to you / the same to you / you too.<br/><br/>- Which answer is more natural and common?<br/><br/>Thanks a bunch to Teachers,<br/><br/> Stevenukd.