Mid Sleeper Bunk Mid sleepers are ideal for children aged four or older, since they are suitable for smaller bedrooms. They offer the same fun and flexibility as a high-sleeper but take up less space. Many cabin beds for mid-sleepers have desks or furniture - ideal for study and homework. https://www.bunkbedsstore.uk/products/mid-sleeper-kids-bunk-bed-frame-in-grey-white