Choosing a Small Bunk Bed For kids Bunk beds with mattress Kids' bunk beds are an excellent option for reducing space, and a lot of manufacturers provide flexibility in their designs. It could be bunks at the bottom that you can add or take away, twins that are built to be stacked and separated at a later point or ladders that slide on the side of the bed to make space. This adorable treehouse bunk bed from West Elm has a fun top that's completely secured for privacy and safety. It is also equipped with the ability to pull out a trundle for sleepovers. Size best bunk beds for kids beds are a great option to reduce space and provide an inviting space for two or more children to sleep, play and relax. They can be a great way to improve the look of rooms. Take note of your child's current seating and standing heights, as well as the way they'll grow over the next few years.