Cabin Beds and Mid Sleepers A mid-sleeper can be an ideal option for children who want to be a high-sleeper, but the space isn't enough. These beds are slightly lower than high-sleepers and come with a variety of fun and exciting accessories to make the most of the space underneath. https://www.bunkbedsstore.uk/products/mid-sleeper-kids-bunk-bed-frame-in-grey-white