Your ears DO ring if you stand in a silent place too long.
Just as your eyes may start giving you hallucinations in perfect darkness. Your body is not used to total sensory deprivation and as such ... it starts producing false readings.
While I
totally understand someone craving silence in today's mad mad world, I do feel the need to warn them that total silence is overrated.
I work in a server room, assaulted by hundreds of cooling fans. To that, add the AC units and the fact that we are close to an emergency hospital with lots of ambulances passing by.
Let's not forget about the dogs. Brain dead moronic creatures, forever barking.
So yeah, after some time, i do crave a little silence myself.
Lucky for me, I work in a TV station, so I can simply lock myself into a voice recording room which is totally sound-proofed. I usually read and have my lunch breaks there but I never found myself able to hang around for more than an hour.
Not hearing any sound is only fun for so much.
Ok, now to the advice part.
If you are interested in testing sensory deprivation once, you could either look for a research program needing volunteers, or even go as far as renting (bribing someone if needed) 60 minutes of Chamber R.E.S.T. or Flotation R.E.S.T.
http://en.wikipedia.org/wiki/Sensory_deprivationIf you feel the need to do this daily, and you are ready to spend some cash, I am quite positive you could use soundproofing materials for a small room in your house.
If you are really determined about that, you could either research or I could ask our Chief Sound Engineer about exactly what you need to achieve that. Be warned, some materials are really expensive.