[tag=WP] [tag=VBD] □
[tag=WP] [tag=VBD] [□]
[tag=WP] [tag=VBD] □?
Table 3 presents the median DST decrements and amount of Stages 2 +3 +4 sleep for these groups on each nap day , as well as subjects with similar amounts of Stages 2 +3 +4 sleep who were awakened from Stage 2 and Stage 4 sleep .