Sleep easy with wool
Wearing woollies in bed may be a more effective insomnia remedy than counting sheep, Australian research suggests.
It sounds like a dubious yarn. But experts say wool helps keep the body in the ‘‘thermal comfort zone’’ most conducive to restful sleep.
Scientists in Australia carried out two studies of young and older sleepers to test the theory.
Students in their 20s in the first group nodded off four minutes faster on average when wearing pyjamas made from Merino wool rather than cotton, taking 11 minutes instead of 15.
They also enjoyed an extra seven minutes more sleep per night.
The second study found that woollen PJs had an even bigger impact on older adults aged 65 to 70.
They fell asleep after 12 minutes, compared with 22 and 27 minutes for those wearing polyester or cotton respectively.
Researcher Dr Paul Swan, from the University of Sydney, said: ‘‘Not so long ago sleeping under wool bedding was the norm, and science is now rediscovering the benefits of sleeping in wool’’.