Hi dear , As per your query you have tingling sensation around ear after you slep on your ear . Well the symptoms you mention in query probably occurring due to nerve compression and muscle spasm . I would suggest you to give warm compresses to affected area and take muscle relaxant like orthodox MR . Also do some stretching exercise of neck give yourself proper rest . If condition doesn t get better in 2-3 days then consult orthopedic surgeon for propert examination and rule out causes like clot formation or tinnitus . Doctor may prescribe medicine like eperisone to increase blood supply and local steroid injection. Doctor may also recommend for physiotherapy . Hope your concern has been resolved. get well soon. Best Wishes, Dr. Harry Maheshwari