My husband & I don't sleep in the same bed because of his snoring. He uses a CPAP machine now, but he still gets up during the night, has to adjust his mask or sometimes take it off. We are both light sleepers and had to make the decision that it was better for us health-wise to not sleep together and therefore we sleep better. Both of us are able to get in comfortable sleeping positions and not worry about waking the other. We have a great marriage and just celebrated our 7th anniversary last November.
I get up around 5:30 and start my workout anywhere from 30-45 minutes later, so I can get a light snack, make coffee for my husband, get the newspaper, and wake-up before jumping into a workout. I am very quiet when I go to the bathroom to put my contacts in. We also use white noise machines so that does help to muffle any noise I might make. I've learned how to shut doors without making hardly any noise.
I use an alarm clock every morning (except weekends), my husband uses one every now and then - if he needs to get up early for a meeting or a golf game. he's self-employed and works mainly at home, so he doesn't have a schedule that he has to stick to. I'm getting ready to start training for my new job and my schedule will change and I'm actually looking forward to it. My training schedule and shift schedule will require me to start later and stay up a bit later, so I'm looking forward to being able to sleep later and workout after breakfast when I'm more alert and awake. I will be working from home, so that's a huge bonus for me as well.
That's just what works for me, good luck to you in your workouts!
Amanda