My cat howls a lot during the night because she's deaf, and then wants to go out and hunt. What we do is wear her out before bed (she's 20 so all it takes is a lot of pettings and then put her in her box and she's good until 3am when we just wake up and feed her which makes her content for an hour or so and then it's daylight so then we let her out for a few bit which is all she wanted in the first place).