Why do I feel so much worse after a nap – and how can I avoid it?

Waking up from a nap feeling groggy, tired or ill? Experts say it’s common. Here’s what could be going wrong

Conch blowing could help to alleviate sleep apnoea, study suggests

Experts on condition affecting millions of people in UK give cautious welcome to findings but say more research needed

The 1am shut-eye: what is the prime bedtime for your health and happiness?

According to a survey, the average American heads to bed at 10.36pm, falling asleep 42 minutes later. Many younger people opt for lights out at 9pm. Are they all missing out on uplifting and restorative late-night fun?

Terrible night’s sleep? Here’s how to make it through the day – and maybe even enjoy it – one step at a time

Coffee or no coffee? Almond croissant or exercise snack? Early night or bedtime as usual? You’ll be grateful you made the right choices

Wolf Moon by Arifa Akbar review – night terrors

The Guardian theatre critic’s imaginative exploration of life in the shadows

Stop counting sheep – and 13 more no-nonsense tips for getting back to sleep

Awake in the night again? From box breathing to standing on a cold bathroom floor, experts and readers offer tried and tested tips on how to calm your mind and drift back off …

NHS manager ordered to stop selling ‘sleep drug-laced’ children’s gummies

Regulator tells Sally Westcott to pull product that allegedly has undeclared levels of prescription-only melatonin

‘I feel like a drug dealer’: the parents using black-market melatonin to help their children sleep

Desperate dads meet in car parks to exchange packets; exhausted parents slip it into their kids’ drinks; families waiting months for prescriptions buy it ‘off label’. But is it worth the risk?

The one change that worked: meditation cured my insomnia – and transformed my relationships

The practice that helped me to sleep also gave me the clarity to end my marriage, and to begin dating again

Origin Hybrid Pro mattress review: gigantic, firm … the James Bond of mattresses

This supportive bed-in-a-box mattress packs a powerful orthopaedic punch. Here’s what impressed me – and what could be better