Cabin Beds and Mid Sleepers If your child wants to be a high sleeper, but isn't quite big enough to fit one, a middle sleeper is a great alternative. They're a bit lower than a high sleeper, and come with a range of fun options to maximize the space beneath. https://www.bunkbedsstore.uk/products/kimbo-mid-sleeper-bunk-bed-with-drawers-frame-only