In order to be in a position to understand when to use a chaise lounge, it would be a great idea to first acquaint ourselves with what such a chaise lounge is, in the first place. As it turns, the chaise lounge is simply a chair whose sitting area is extended to accommodate 'the sitter's' legs. So unlike a usual lounge, where the legs of the person sitting on dangle to the ground, on the chaise lounge, the legs remain on the lounge; making it - in essence - something of a cross between a lounge and a bed.