Recently I came across the image above of small bunk beds in the shared bedroom of 4-year-old twins and realized I’d never seen mini bunks like this. They are the same size as a toddler bed (i.e. the size of a crib mattress) and offer a stop-gap solution for parents looking to eke out another year or two in their current space. First, a word about safety: Although these beds are sized for toddlers—i.e.