Italian furniture manufacturer Dielle, has created what they call a ‘Container Bed’, which is a normal bed that has been raised to include storage underneath. It’s a solution designed for small apartments that often don’t have enough storage space.
You should never attach anything to a car seat or the straps AND the zippy is a projectile in a crash. One that is tied essentially to the child increasing the danger even more. Sippy Cup Leash: Re-visited and Improved