Let's See What Happens
Your home is meant to be where you feel safest and more secure than anywhere else. Unfortunately, that sense of security can't always be guaranteed.
This is why hearing an unfamiliar noise in your house can be disconcerting. After all, what sounds could be unfamiliar in your own home? Getting out of bed to investigate what might be wrong simply wasn't worth the effort to this person. Eventually, any problem arises tends to make it to you, right?