They are both waves, but they are entirely different types of waves. Light is an electromagnetic wave, while sound is a mechanical wave.

One of the benefits of sound is that it requires a medium, such as the air to move around. When sound travels through the air and hits a wall, window or curtain, it causes the object it hits to also vibrate and disperse on the otherside.

Light however is mostly reflected off of solid objects. It's worth mentioning that while light doesn't go through walls some electromagnetic waves can. Think something like your internet wifi (typically radio waves), which is just a different frequency and wavelengths compared to visible light. Both are electromagnetic, however.