about
midnight
`` And now , if you do n't mind , Captain King , I 'm going to sleep down there at the foot of the wall , and to-night I 'll join the guard . '' `` Do as you wish , '' said King , `` you know more about Texas and these Mexicans than any of us . '' `` I 'd suggest a very thorough watch when night comes . Wake me up about midnight , wo n't you ? '' Ned lay down in the place that he had chosen . It was only the middle of the afternoon , but he had become so inured to hardship that he slept quickly . Several shots were fired before twilight came , but they did not awaken him .