How do you fix a neck after a bad sleep position?

hi there the best way to fix your neck is to just apply some vicks or something that will keep yourself relaxed on your next.

then go slowly downstairs and heat up a water bottle not to hot incase it burns your skin with a non used tea towel and just relax. after you want to slighty move your neck left to right and once it's done empty out the water in the nearest sink and your neck WILL be moving for sure

thank you for reading this and good luck.