I lay awake waiting until I judged it must be about two o'clock in the morning.
( I ( ( ( lay awake ) ( waiting ( until ( I ( judged ( it ( must ( ( be ( about ( two o'clock ) ) ) ( in ( the morning ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBD lay) (ADJP (RB awake)) (S (VP (VBG waiting) (SBAR (IN until) (S (NP (PRP I)) (VP (VBD judged) (SBAR (S (NP (PRP it)) (VP (MD must) (VP (VB be) (PP (IN about) (NP (CD two) (RB o'clock))) (PP (IN in) (NP (DT the) (NN morning))))))))))))) (. .)))
I fell asleep before midnight and didn't wake up until six in the morning. 
( I ( ( ( ( ( fell asleep ) ( before midnight ) ) and ) ( ( did n't ) ( ( ( wake up ) ( until six ) ) ( in ( the morning ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VP (VBD fell) (S (ADJP (RB asleep))) (PP (IN before) (NP (NN midnight)))) (CC and) (VP (VBD did) (RB n't) (VP (VB wake) (PRT (RP up)) (PP (IN until) (NP (CD six))) (PP (IN in) (NP (DT the) (NN morning)))))) (. .)))