Amazon is a great place to go for bedframes and nightstands. Remember to pay attention to the scale of items on Amazon.
There are so many SKU’s for the kitchen and bath. It is a bit of work assembling all the items to make a complete experience.
I purchased all of these on Amazon. For bedding I bought a few different brands on Amazon and have settled on the Mellanni microfiber sheets.
I am not a professional interior designer. Not by a long shot. My biggest tip is to look to the furniture you already picked to inform you on how to decorate the room.