My bedroom size is weird. About 7 Feet 10 inches by 13 feet 6 inches. After the wardrobes have come in the 13.6 length is now reduced to 9.6 inches. The wardrobes are coming in the dead space behind the door. So I can either place my bed on the window or on a side wall. The window wall measured 7 feet 10 inches. Please help as to which size bed I should buy and how should I place it? Thanks

These are called wooden pellet or pallet. You can order them online . Scrap dealers around manufacturing logistics industrial areas usually sell these as well.

Made of timber, plywood and MDF board.

Thanks for the suggestion, the board on the wall 1 is the headboard(i.e legs toward the wardrobe) mostly. Either side is fine for me.