Olivia bed: Get an Olivia bed frame with crystal finials. Crystals: The stylish bed frame features crystallised knobs on either end of the bed posts which will add an elegant touch to any bedroom. Mattress: Upgrade to get deeply filled 23cm Jerez Bonnell sprung mattress, complete with an ultra-comfortable layer of memory foam. Sizes: Choose from a single, small double, double or king bed. Colours: Choose from black or white. Product dimensions: See full details. Olivia Bed & Crystal Finials | Black | Living Social