I think IMR is right..................I sometimes can't even remember where I sleep. and there has been more than one occasion where my husband has found me standing up asleep..........( wobbly and getting ready to fall over
) asleep sitting up on the couch with my hands still holding a cat food container. and I can't tell you how many times I have fallen asleep in the bathroom, where I have four cats some time and one usually on my lap, hence falling asleep.( They come into the bathroom for a "grooming session". where I keep a flea comb, and while I sit there, one will jump on my lap, and starts getting flea combed, but in the dark, it is easier to just fall back to sleep....
)
Aibos can go back to their "docking" or charging stations, so perhaps in the future, Pleos will do that too, as their beds.
RWM