Once you’ve established the bedtime that’s best for you, Vanderkam suggests setting an alarm to ensure that you stick to the schedule. While it may sound unusual (after all, you probably set an alarm to wake up, not to go to bed), she’s confident that this technique can make all the difference. “Lots of couples watch TV together before bed, which then requires one person to be the ‘bad guy,’ telling everyone it’s time to turn it off and go to sleep,” Vanderkam says. Setting an alarm makes the alarm the bad guy, so it lets you off the hook—and you’re more likely to do the right thing.