The Starlight Beds Castle Grey Memory Foam Spring Mattress features deep fillings and Cool Blue Memory Foam, which disperses heat for a cooler sleep. This double mattress measures approximately 4ft6 x 6ft3 (135cm x 190cm) with a depth of 20cm. It includes a responsive memory foam layer that adapts to your body for personalized support, pressure relief, and comfort. The mattress has a soft-touch fabric for a plush and cozy feel. Proudly manufactured in the UK, it complies with British safety standards and meets UK regulations BS7177:2008 for domestic use. The mattress is vacuum-sealed, rolled, and boxed for convenient delivery and easy handling.