My OH has started wanting to go to bed very early in the evening. He even starts asking about it at around 6.30. A few weeks ago I was managing to keep him downstairs till about 9.00. The last few days he has been getting quite snappy and angry but not aggressive about it. This means he goes to bed about 7.30 and sleeps about 12 hours. He does wake perhaps once or twice to use the toilet but otherwise he’s flat out. Is this a normal thing, just another stage.