How to Choose a Triple Sleep Bunk Bed A triple bunk bed with mattress sleep bunk bed is a great option to reduce space and bunkbedsstore accommodate three children in one room. We suggest choosing one that has complete guard rails, a inclined ladder and stairs with storage steps to help keep everything organized. The best triple bunk beds also have solid slatted frame systems that eliminate the need for box springs. This is an essential security measure to reduce the risk of accidental falls. Stability A triple sleep bunk bed is a great space-saving option for your child's bedroom. It maximizes vertical space and is ideal for rooms with limited space. This design can be arranged to fit 3 beds in the footprint of just one. This provides children with more space for play and a comfortable space for sleepovers.