Pierre Guillaume's pillow spray, Hesperidream, debuted this summer —  has anyone tried it? "...a fragrance designed to perfume the bed, sheets, pillowcases and duvet covers, inspired by the principles of aromachology. The aromachology is the science of the phenomena related to the odors, more particularly the influence of the smells on the behavior. Hesperidream is made from tangerine, orange blossom, sage extract, California yellow poppy blossom and vetiver, chosen for their soothing, hypnotic and refreshing smells." 100 ml for €45.