Thanks Mulberry, yes, as far as I know, he sleeps at night too! He has a blood test due on Wednesday, and we speak to the lovely nurse on Thursday, so will discuss with her… We went to church this morning, and he was fine, then fell asleep before eating a good lunch. Then slept all afternoon, ate tea, made a brief trip to shut the gate, asleep again, and aside from taking a tablet. Is asleep again. It does seem very very excessive, he says he is fine!!!