I'm in a place where even playing with a mute is too loud. I've heard some good things about silent brass devices. But I was wondering how quiet can you physically get with trumpet and still maintain a daily practice without making it too hard too play?
A regular mute changes the colour of the sound. A silent brass mute (like the Yamaha one I've used for years) won't silence you but it substantially reduces the produced volume. The instrument does "feel" different when the mute is inserted - there's more back pressure and the intonation of some of the lower notes goes off a bit. But it still feels like a trumpet.
Using the practice mute means I can play in my car or in a very small room where the volume would otherwise be absolutely crushing, so the mute makes almost any space into a possible rehearsal space.
Provided you practise at a reasonable time of day and don't go on for hours, you should be able to play every day without reasonable complaints.
If you do use a practise mute regularly, do try to make some opportunity to play unmuted too; join a band or find a space you can play in without disturbing others. Otherwise you forget how the open instrument behaves.
Best thing to do would be to try out a practice mute for yourself. Borrow one if you can or get one on approval. Don't rely on just playing it in a shop - you really need to live with it for a bit to see how you get on with it.