Peter Andre is struggling with a lack of sleep.

Peter Andre

Peter Andre

The 'Mysterious Girl' hitmaker admits the nocturnal disruption his baby son Theodore is causing to their household has come as a shock to the system, particularly because his and wife Emily's three-year-old daughter Amelia was always such a good sleeper, but they are doing their best to maximise their chances of getting some shut-eye.

He said: "Little Theo has had me up early every morning.

"I know he's only 10 weeks old and a lot of people will probably say it's not unusual, but because Mills was sleeping through the night from six weeks I'm finding it particularly hard.

"As Emily is still breast feeding, I can't take over during the night so we do a deal where she goes to bed at 9pm and I have him until midnight, and then at midnight she'll do a feed.

"Then I'll try and sleep between 12 and 6am and take him from 6am or whenever so Ems can catch up on her sleep. It's a bit mad at the moment but it's all done with love."

The 43-year-old singer - who also has kids Junior, 11, and Princess, nine, with ex-wife Katie Price - has come up with a number of nicknames for his young son, but joked he ends up using the tot's full name every night.

He said in new! magazine: "I often refer to him as TJ on Twitter but I have a couple of nicknames for him.

"I call him Teddy or Friday, which confuses a lot of people. I guess TJ reminds me of the food place, TGI Friday.

"I only ever call him Theodore when he's naughty, which is most nights when he doesn't sleep."