Material

For cushion: Sponge.

I would want to have the softness of sponge, nice and comfy

Cushion leather: Nubuck Leather

It is very soft and comfy leather, as it also has been used for a luxurious bag.

For the Wall: White board material

it can be rubbed off and as the idea is the White Room.

For the make up cushion: Cedar Wood

Light weight but strong and the straight linear pattern.

However, wood is going to be covered by white.