What is the opinion of Reddit about the
Best Price -Mattress 18 Inch Metal Platform Bed, Heavy Duty Steel Slats, No Box Spring Needed, Easy Assembly, Black, Twin?

Flip the two black things so the window is not blocked. Can you do something with other stuff that blocks the window? Under the bed maybe. Hard to tell if it already has storage. Amazon sells a plain bed frame for around $100 that has 18 inches of clearance. bedframe If you want those little pictures to stay, put them on something larger. Buy a covered cork board with a nice frame, or something and collage them into one or two matching items. Once you have those things done, you can reevaluate and freshen things up with new bedding or curtains.