whether its a hot summers night or whether your sleep is disturbed due to hot flushes or night sweats these pads will help keep you cool & give you a better more restful sleep. with no pre freezing or refrigeration required these cool pads react to your bodies own heat to bring you down a few degrees & produce a natural all night cooling effect without the need for noisy fans or expensive air coolers! the cool head comes as a pack of 2 pillow pads designed to lie between your pillow case & pillow & keep your head cool they can even be used in your favourite chair your car or wheelchair for direct cooling comfort & measure 39.5cm x 35cm (15½in x 13¾in).