William has recently turned eleven and for some reason has decided to stop sleeping at night! For several weeks now he has been getting me up two, three or four times during the night. At first I thought he was needing a wee, so I would get up and let him out. Now, however, he just runs around the house making a whiny noise. My other cocker follows in hot pursuit and my poor GSD and I are suffering through lack of sleep! In every other way he is fine, eating and drinking well, lively and active, although I think a little deaf now. I don't know if this 'night-time prowling' has just become a habit, or if there is something more seriously wrong. Any advice please? I have tried giving him a little food during the evening so that he is not waking up hungry, but it hasn't made any difference.