It occurs to me that the only reason that Bags of Holden kills Animals that are put into it is due to the Stasis Effect that Preserves things in it, that must basically turns off Neurons and so stops the Heart, Brain Activity, Lungs, ect. Although it could be the act of entering the Pocket Dimension that does this as well? So if something was created that didn't have this effect then you could create Expansive Rooms that would be bigger then it's outside walls. Although you would probably need something like a Dimensional Air Lock to try make it safe. Say for example a (Mobile) Expansive Caravan Home that would have a small entrance room (with inner and outer door, possibly looks like are normal caravan room, with the inner door disguised as a Cupboard door) that would function as a Air Lock that helps you to climate to the spacial folding effect, then the inner door leeds to the Expanded living area. There might be a secondary Room inside of the Expanded area that leads to an even larger Expanded area in better versions? If course there might still be a risk of suffocation due to Oxygen depletion and CO2 build-up, so this will need to be dealt this as well. Also risk if outside is destroyed while you are inside it.
