A quiet corner with a low, neutral‑colored shelf and a single soft rug can feel spacious. Keep a few sturdy, natural toys—think wooden blocks or a soft ball—so there’s something to play with but no clutter. A small plant or a simple picture can add a touch of nature without drawing attention. Use soft, indirect lighting, maybe a small lamp, to create a calm atmosphere. That’s all you need to keep the space distraction‑free and happy.

Sounds like a space that will let them find quiet in their own rhythm.