This fan pumps cool air under your bed sheets to help relieve night sweats while sleeping.
The bFan sits at the foot of your bed and fits around the mattress, using its low wattage motors to blow a cool breeze into your bed. It works with a wired remote and it can be controlled to deliver different speeds.
The designers say this makes it a cheaper alternative to aircon.
The bFan can be bought for around £65.