This paper suggests a 4-dimensional matrix within which an infinite multiverse can exist. This concept has drawn its inspiration from several well-established concepts in theoretical physics which include brane- world scenarios, higher- dimensional models, and multiverse proposals which arise in the string theory and eternal inflation. In such a framework, the 4th dimension is taken as another spatial dimension along with length, breadth and height. This creates a 4+1-dimensional matrix analogous to the 3+1-dimensional spacetime of our universe as mentioned in the Einstein’s theory of relativity. The theory suggests that each individual universe may behave like 3-dimensional branes embedded within this higher-dimensional bulk. This aligns with aspects of string theory-based brane cosmology, which allows for a potentially vast variations of possible infinite landscapes of universes. The additional 4th spatial dimension is assumed to be inaccessible to us 3-dimensional observers, but it enables the arrangement and expansion of an infinite number of universes. This model extends the pre-existing multiverse interpretations by proposing a specifically structured 4-dimensional matrix which supports the continuous formation and expansion of universes, thus offering a simplified yet conceptually consistent higher- dimensional representation of an infinite multiverse. This work is a speculative conceptual model intended for educational and exploratory purposes and does not present a complete mathematical or experimentally verified theory.