Hypochondriacs: I Told You I Was Ill (C4); Sleep Clinic (BBC1); The Bad Mother's Handbook (ITV1): SARAH has had a brain tumour, tumour in her eye, heart attack, stroke, bowel cancer, lung cancer, stomach cancer... I could continue but it might make you feel ill.

She sounds like the ideal subject for one of those documentaries about people with rare genetic illnesses. She's actually as fit as a fiddle but thinks she's seriously ill. This is an illness in itself - not hypochondria but "health anxiety disorder" as doctors now call it.

It's all in the mind. Four sufferers were packed off for a therapy weekend on Hypochondriacs: I Told You I Was Ill.

With Sarah were was single mum Laura, who's convinced she has cancer, and Kevin, who has an obsessive fear of catching the HIV virus. Jane was a more complex case. Five years ago she collapsed and ended up in a wheelchair, but doctors can't find anything wrong with her legs.

Some were easier to help than others. Sarah and Kevin were pushed to their anxiety limits to overcome their fears. This included, in her case, taking exercise and not having a heart attack, and in his, shaking hands with a gay HIV-positive man.

Laura's problem was the most obvious. She was still grieving for her father. He died of cancer and she believes she triggered his illness by making him stressed.

As for Jane, her doctor is "confident for her future" but she has yet to convince herself to walk again.

Jody's husband Jim would like a decent night's sleep. She constantly wakes him up with her shouting and screaming during nightmares.

Off she went to the Sleep Clinic at Papworth Hospital. Jim found hilarious the sight of her ready for bed with dozens of wires attached to her face and body. I just wondered how she'd be able to sleep with all that equipment on her.

Hidden cameras showed another restless sleeper Malcolm perform an entire variety act in bed. He pretended to weightlift, row, play the trumpet and make weird noises. His wife described him as "a bit of a moaner" which, in other circumstances in the bedroom, might have been a compliment.

Sleep doctors can't help him because he's actually awake when he does these strange things. It's not a sleep disorder but a deeply ingrained subconscious habit.

The results of other things that go on in the bedroom caused all the drama in The Bad Mother's Handbook.

With Catherine Tate as the woman who discovers she's adopted as her teenage daughter finds out she's pregnant, you might have been expecting a comedy. But this was a domestic drama well played by all concerned, including Tate, the marvellous Anne Reid as her doolally mother and Holly Grainger as her daughter.

The laughs turned to chills as Tate's character meets her real mother in a twist that no one could have seen coming - unless you'd read Kate Long's novel, on which it was based.