Midi Bed With Storage These mid-sleepers that have storage make a great multi-functional piece for children's bedrooms. These beds with a low-profile use the standard UK single mattress and squeeze in plenty of storage elements beneath the mattress. Many come with a pull-out trundle, perfect for sleepovers. Some designs include https://www.bunkbedsstore.uk/products/kimbo-mid-sleeper-bunk-bed-with-drawers-frame-only