Mid Sleeper Beds A mid-sleeper's mattress is similar to the high sleeper, however it's lower and typically has a an easier ladder. They are ideal for smaller children or when your bedroom is confined in space. Mid-sleepers are available with a variety of features, such as desks, shelves, and even https://www.bunkbedsstore.uk/products/avalon-midi-sleeper-bunk-bed-single-size