I used to leave my watch on all the time, but since I switched to my ultra-cool, weighs next to nothing, Lego watch - LOL - I take it off. I worry a bit that I might break some of the plastic band if I hit it on the night table. I also take off my ring & ankle bracelet (which is glass beads on a stretchy cord), but I leave my earrings, necklace & bracelet - all sterling silver - on all the time.