Handmade in the UK, this Kayflex Pocket Plush Ultra 3000 Series Mattress has individual pocket springs. It\'s also 24cm deep with a layer of memory foam that offers medium support, so there\'s no \"roll together\". The layer of memory foam adjusts to your body shape which helps to give you a good night\'s sleep. Each spring of this luxurious mattress moves independently from the others. The combination of independent springs and soft memory foam offers a mattress that is extremely comfortable for each person. This is a truly durable mattress which will stand the test of time and last for years. Kayflex also offers a five-year warranty on this mattress - so should anything go wrong, you know you are in good hands. This mattress is a good investment, looks great and is of 5-star quality.