Mid Sleeper Beds A mid-sleeper's mattress is similar to a high sleeper, however it's lower and typically has a a shorter ladder. These are perfect for young children or rooms with limited space. Mid-sleepers have a variety of design options including shelves, desks or even tents. Review the product's specifications https://www.bunkbedsstore.uk/products/metal-bunk-bed-gray-single-198-2x96-2x130-cm-black