You could get some kind of square baskets to put under your bed. Also another thing that sometimes helps is if you don't have a wardrobe you could get a shelf or bookcase and put some stuff in that. You could also get some baskets and attach them on a line across the top of your room so you could slide the baskets across when you needed something.

hi, I have a space under my bed that is about 98cm high, 136cm wide and 100cm deep. I really need some sort of storage thing to fit in this space. my room is absolutely tiny so it needs to be really space efficient.