The bed fan

Sleeping when it's hot proves problematic for most people. Sadly not everybody has access to air conditioning. So, short of stuffing your sheets in the freezer every evening, the best way to keep cool at night may very well be with this portable fan designed specifically to blow air between your bedclothes.

The powerful dual fans move up to 680 feet of air per minute, dispersing built-up body heat under the sheets. Even better: the bed fan comes with a wireless remote; keep it on your bedside table, so you can control the temperature without leaving the little breezy slice of heaven that your bed will become. 

Source: gizmodo.comAdded: 22 June 2012