It sounds to me like you maybe overtired by the time you go to bed and Mr Brain is in a type of over-stimulation. He can't sleep yet he can't wake! Therefore you are fluctuating between the two! Perhaps Aston is keeping you too busy!! Remedies - probably the usual - bath, horlicks, book, valerian tablets from the health shop, or maybe a short course of 'something' from the Dr to get you over this phase., although judging by your user name, you must have a youngster, so this may not be appropriate.