Make sure the fitted sheet fits snugly around the crib mattress.
Make use of shapes. Use different shapes when choosing furniture and accessories for your room. This will make your room look livelier and less dull.
If you wish, you can keep his bedding the same for a while, to give him the comforting feeling of some sort of continuity in the transition. Or you can have brand new custom bedding designed to match the theme of his big boy bed. Which option is best depends really on the child.
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