Can anyone help, my little "darling " was sleeping fine from around half nine at night till half 6 sometime 7am in the morning. Over the last few nights he has been a nightmare, wakening at all hours and crying to get out. I have been tough and only let him out for a wee and then straight back to his cage, this morning he cried for about 2 hours. I am shattered and very frustrated as cant see why he would revert back to this carry on. He always gets out last thing out night for a wee and then put in his cage, which he does like. He is 6 months old now.