hit the hay

hit the hay
    v 1: prepare for sleep; "I usually turn in at midnight"; "He
         goes to bed at the crack of dawn" [syn: {go to bed}, {turn
         in}, {bed}, {crawl in}, {kip down}, {hit the hay}, {hit the
         sack}, {sack out}, {go to sleep}, {retire}] [ant: {arise},
         {get up}, {rise}, {turn out}, {uprise}]