Visco Therapy CoolBlue Deep Memory Foam Mattress – 4FT6 Double, White Wentworth Mercer – Deluxe Wool 4000 Pocket Mattress – Double – Medium to Firm Mattress – Wool Filled Luxury Mattress – Luxury Mattress – Pocket Sprung Mattress Price guide: £849 Click on image for more information and to check current pricing.