hi i separated my tortoises after nearly a year together because one of them kept biting and butting the other,now the bullied one(bam bam) takes himself off to bed at 8ish and wakes up at 7 in the morn , stays awake all day and eats and constantly tries to climb the divide to get to the other one , but the bully (pebbles) sleeps all the time , i have to wake him ,he stays awake for about an hour when i put him under the lamp , then goes off to a dark corner again to sleep , i have to keep waking him or he wouldnt even eat , if i put them together he stays awake to chase the other for ages but it ends up getting nasty so i split them again , do tortoises really sleep this much or is he missing the other ?