This object is a Stasis Podd for your Sims. It can place a Sim (even visitors, npcs and cats or dogs) into a state of suspended-animation indeffinately.

Known problems: It will only work with Sims of normal hight and body configuration. Sims with wings or of larger-than-normal size or odd body types will not fit propperly in the podd, but will bleed through the pod walls. some Sims become addicted to the usage and will return to the Podd if you allow it. Pets can use the Podd and the only way to remove them safely is to control them using an object like my own 'Telepathy Power Emulator" and make them leave the Podd. A fire on the lot will result in emediate release of all Sims in Stasis. 

Expansion packs needed: unknown