Things to Consider Before Buying Kids Beds Children less than six years old will appreciate the low bunks and ladder rungs on this option from Pottery Barn. Choose white to create a cottage or coastal style, or espresso for a contemporary kids bedroom furniture' room. This twin-over-full metal bunk bed features a hidden trundle that's ideal for sleepovers. This option includes a 5-step ladder that is easy to climb for kids and 14-inch guardrails over the upper bunk. Size Bunk beds are a great solution for rooms with kids that are tight on space. Bunk beds aren't just a great way to save space, but they can also help kids feel like they have more space and provide a sense of adventure. Before you buy bunk beds for children there are some factors to consider. Determine the size of your kids and the type of mattress they need. Also, you must make sure that you have enough space in your home for a Bunk Bed usa bed, including the space to get up and down from the top.