You've purchased your memory foam mattress and have unwrapped it from the packaging. What to do next? You?ll want to leave your mattress unwrapped for 8-12 hours. Make sure your mattress is kept at room temperature because memory foam is temperature sensitive. A warmer room means your mattress will be ready to be slept on sooner. Some days will pass before your mattress decompresses and reaches its full height. You may notice creases in your new mattress. Not to worry. Creases are normal and will disappear within a few days of opening the bag your mattress came in. A memory foam mattress may have a slight odour. This is nothing to be concerned about. This residual manufacturing odour will dissipate and disappear within two weeks of unpacking your mattress. Foam also has a natural odour, which will also fade over time. These odours are safe and non-toxic. Memory foam mattresses are wrapped in a hypoallergenic cloth to prevent build of bacteria and fungal growth. If your mattress does require any cleaning, just use a damp cloth in the affected area, then pat dry with a towel. Follow the washing instructions on the cover when it's time to actually clean the cover. If the cover becomes damaged, call our customer help line. This number can be found on the contacts page. Now you are ready. Stretch out on your new bed and enter a world of comfort and total support. Make a lasting impression on your body with an advanced high-density memory foam mattress from Body Impressions! Mattress Next Day is probably the largest mattress superstore on the internet. Selling a wide range of mattresses from leading manufacturers, we can offer quality mattresses at fantastic prices. Our next day delivery service is free or, if you prefer, you can select your own delivery date. We can even guarantee delivery before 9.30am on request. Take a look at our range of mattresses now at www.mattressnextday.co.uk, or call us on 0844 3911 222 for more information.