Washington, DC - It's cool to sleep in the buff and that's good for you, according to the Association of Mature American Citizens.

Dr. Chris Idzikowski, Director of Scotland's Edinburgh Sleep Centre, says  "the advantage of sleeping naked is it's easier for the body to cool and maintain the lower temperature the brain wants to achieve."

He's written a book about sleep called, Sound Asleep: The Expert Guide to Sleeping Well."  In it he also advises the older folks among us, who might be tempted to wear bed socks on those nights when it may be a bit brisk, to swap them out for a hot water bottle.

'Bed socks don't allow you to lose heat from your feet, so you'll end up too hot.  Hot water bottles get your feet warm, but then they cool down or can be kicked out of the way."

The National Sleep Foundation says one third of American adults sleep in the nude and that many of them report the practice offers a variety of health benefits.  They also say it makes for a better love life, according to AMAC