Before I retired just a few weeks ago, this was always happening to me. Too much stress was raising pure hell with my life. If I'm up at 2:00 a.m. now, it's usually due to DH's snoring, hotflashes, body aches or a full bladder. Very aggravating but definitely not fatal. Now that I'm not carrying around the constant mental "to do" list, can usually get back to sleep. Hormone's and stress are definitely the enemies.