I think the most important thing when making a reading nook is making it something that you will feel at ease in. This room is for kids so of course we wanted bright colors and things to look at so they want to stay in the room. I love the soft rug, the pillows, the colorful books, things to play, storage and of course light.
I got the rug from @wellwovenrugs. They have so many options for rugs and they are so soft.
I got some of the wall hangings (not pictured) @jwpaperco. She hand makes every frame, which is awesome.