I can't imagine it will TBH, if you're sleeping you're not exactly running about expending energy. And if you're going to bed later because you're getting up at lunchtime then that would be your breakfast time anyway.....if that makes sense lol as long as your not hungry I don't see it would be a problem.
I agree with the above, as long as your eating when your hungry and probably going to sleep later you can still have breakfast, lunch and dinner but at later times. Your body doesnt know what time it is so dont worry!
Im rubbish at eating breakfast as i dont have time before work and dont like eating that early in the morning so have a glass of milk and something when im hungry later