Sure it can be fun under beds. I used to use under mine as a kid to grow certain...herbs....
And when I had a bed with no space under it, I'd heave it up and lie underneath it, then gently lower it to compress my whole body, sensory thingies, I like the pressure.
Plus when I was living at my old house, and had what amounted to a bunk bed with a single bunk, that one climbed a short ladder to get to the bed, and there was a large gap underneath, plus when my old man had built me my lab bench I had at the age I was when I lived there, I used to use the underneath when not packed with growlights for fostering the growth of certain species of vegetative organism, I'd use the underneath as a space that would never accidentally get tripped over and break things, so I could use the underneath space as a storage for lab equipment and some of the more harmless chemicals I used, nothing nasty in case there WERE examples of those certain plant species, nothing extremely poisonous, I refrained also from storing volatiles under there, nastier corrosives, and especially anything pyrophoric (pyrophoric is the term for things that catch fire in air at room temperature spontaneously, such as for example, white phosphorus, or alkyllithium reagents, sodium, potassium metal could be regarded as such, as are many finely divided metal powders, such as in particular the one that comes to mind is lead nanoparticles in bulk form, produced by heating certain organic acid lead salts in an inert environment until they decompose to give lead metal. The moment the seal of the tube is broken and the lead nanopowder flung out, it bursts into a gout of flame and sparks:))
But equipment, stuff like power supplies, electrodes, electrolytic cells, my blowtorches and spare gas tanks for same, various bits and shits for putting stuff together, lengths of tubing, metal and plastic for various applications, anything I needed for construction of instrumentation and equipment on the spot when needed as I realize I needed them, plus lots of the likes of glass jars, and loads of tin cans for use as disposable crucibles for destructive distilations, or other things that need to tkae a roasting.
