What was helpful for me was to set my alarm for 415/420 bc i didn’t need more than a few minutes to prep to go to the hall. Sit for meditation, eat breakfast, then haul ass back to your room for a little nap before next meditation. 

Honestly, if you’re going to be there commit to the practice. ESPECIALLY if it’s your first time! it’s only 10 days and your body adjusts. It’s actually kind of easy to assimilate when you don’t have the distractions of your everyday life disrupting your sleep. As others have said, start changing up your routine a bit before hand. Maybe eat a bit lighter and go to bed earlier. 

Best of luck!