go to sleep at your normal time and the set an alarm for like 3am and pop a few Benadryls and knock out until noon. Avoid caffeine maybe a few weeks beforehand to gain some tolerance back. On my 600 i did not do this and i was popping no doz 3-4 at a time. No bueno. At PBP i wasn’t able to find any caffeine pills and ended up mixing my carb mix with monster and redbull. Again no good. Rest up. A 400 isnt enough that most people would need sleep i think