I wouldn’t mind sleeping in any one of these bedrooms – they are so well designed that you actually forget they are small.  Decor touches like the oversized headboard, thick curtains, and white bedding make these rooms feel luxurious.  Architectural elements like the floor to ceiling windows and wood beams draw your eye upward, and make these rooms feel spacious.  When looking at small apartments, I would keep those architectural elements in mind because they will bring out the best in any space.