Hopefully you have been icing through the day and keeping it elevated through the day, also. If not too late get to Walgreen's or similar and purchase a compression appliance for the ankle. Two kinds are out there, one looking like an old timey basketball shoe top and the other neoprene. Either will work tonight. Or in a pinch an ace bandage will work. You want to sleep in compression and slightly immobilized. Put a pillow under cover at the foot of the bed so the ankle can rest in the neutral position.
I would take recommended doses of NSAIDs tonight and in the morning. Finally, do not think you need to run this week at all. Do not go out the door and try it to see if it is healing.
Hopefully the ankle does not swell up tonight and you have seen the worse of the injury. Generally you can get back in the game a week after a sprain.
I am more than likely over reacting but I have seen ankles swell over night after a simple roll, once the body relaxes and you are asleep.