The only tanks I have in my room are my 2 gallon betta tanks (two of them) they dont require a large filter, so they are very quite. regardless of the sound, I think it's just nice to watch the fish as your laying down going to sleep....and if you are concerned about fish "watching" just cover them with a blanket 
it kinda distracts me tho whenever Im doing something else. I have 120gallon in my room w/ 2 canister filters. Theyre really quiet, I used to have loud power filters, I can sleep regardless but I think I have better sleeps now w/ the canisters
I wouldnt put my tank anywhere else.






