[GovernmentShrinker]

Quite possible, especially if there's plush carpeting along the entire route, and the house is well-constructed (i.e. doesn't have thin walls and no sound insulation). Also, keep in mind that people normally sleep through types of noise that they are accustomed to hearing at night. In a home with 2 adults and 6 children, the sound of someone tip-toeing up and down the stairs, and through the halls (trying not to wake up other family members) is ordinary background noise. People get up, go to the bathroom, go to the kitchen, etc., and hearing something like that while you're really asleep, or even half awake, wouldn't be a reason to jump out of bed and go see if something's wrong.

[mhking]

Quite possible, especially if there's plush carpeting along the entire route, and the house is well-constructed

No, I realize that -- I'm just pointing out that this is starting to head into territory that I don't think anyone wants to head toward.

This isn't an easy "solve it before the last commercial" kind of case. And I think that there is more than meets the eye to the seemingly conflicting stories that have been surfacing of late.

My guess is that the comparison will soon surface between this and the Ramsey case in some strange sort of way. Call me crazy...but you never know...

[r9etb]

People get up, go to the bathroom, go to the kitchen, etc., and hearing something like that while you're really asleep, or even half awake, wouldn't be a reason to jump out of bed and go see if something's wrong.

LOL -- Maybe for the siblings, probably not for the parents. When my kids move around like that at night, I nearly always wake up, even if they're being really quiet.

However looking at the layout, especially the Master Bedroom, I think it's entirely likely that people would be able to move about normally without being heard -- much less if they're trying to be quiet.