Is It Possible To Have 3 Bedrooms In A Tiny House?

For sale here: https://tinyhouselistings.com/listings/now-this-is-livin-too-tiny_house

Built new in 2017. Tons of storage. Includes electric fireplace, kitchen table and chairs, built-in book shelves, on-demand hot water, flush toilets and all-in-one washer/dryer. Master bedroom with king bed and dual entry and dual closet areas! Second bedroom has full bed. Third bedroom with extra long twin-you can stand up in this room. Space for large desk, and large area under bed for storage (or put another twin bed underneath).

3 bedroom tiny house for sale in Tualatin, Oregon: https://tinyhouselistings.com/listings/now-this-is-livin-too-tiny_house