Reported speech 點做?

以上仁兄仁姐全都錯了，你的示句是原文為疑問句，那麼我們就要
１）若是直述句為say時要轉為ask或inquire等，如：I said to hm,"what are you reading?"就要轉為I asked him what.....
２）若直述文句是用why, what, how, who, where等等（這些疑問詞是引出疑問句：如：What he was reading？的what是引出he was reading），則用這些疑問詞作連接詞就可以，如：He said to me,"why did you do such a thing?"，就轉作He asked me why I......
若疑問詞不是引出疑問句：如Are you happy?等就用if (or whether)作連接詞，不可用that作連接詞
如：He said to me,"Do you know my brother?"就可轉成He asked me if I knew ......
３）將報告文改為平述句（即主詞＋主動詞，即不要用倒裝法：動詞在主詞之前，如：What is your name?is這主動詞就在主詞your name之前），接在if(or whether)或其他疑問詞後面
如：I said to him,"what are you reading?"就成了I asked him what he was reading.
　He said to me,"Do you know my brother?"就成了He asked me if I knew his brother.
４）最後刪去問號
最後要題的是yesterday要轉成the day before(or the previous day)
所以，跟據以上的步驟，你的示句轉為報告文，就成了
She asked me when I went to bed the day before(the previous day)　

She asked me (that) when did I go to bed yesterday.