My precious, very precious object is this little nosespreader here.
How it is displayed on the screen (before you click on the image) is true to size as the actual object in real life. I put this object in my nose before going to sleep, it spreads my nose so that I can breathe easier. The object is a symbol for my CPAP machine, I use this machine because I have sleep apnea. Sleep apnea, also spelled sleep apnoea, is a sleep disorder in which pauses in breathing or periods of shallow breathing during sleep occur more often than normal. Each pause can last for a few seconds to a few minutes and they happen many times a night, this means for me personally that I am very tired every day because I suffocate in my sleep, so I never achieve my much needed REM sleep.
So it is safe to say that I depend on these objects, sleep apnea can be damaging to my brain, eyes, lungs, etc. without these objects my health is a ticking time bomb.