Mattress Opening Instructions 1) Lay the vacuum packed mattress onto your base. 2) Carefully remove the polythene outer sleeve surrounding the mattress without using any sharp tool which could damage the product. 3) Next unroll the mattress onto your bed (while still inside the polythene cover) positioning it as you would a normal mattress. 4) Now carefully open the polythene bag covering the mattress without using any sharp tools which could damage the product. 5) As soon as the mattress is exposed to the air it will start recovering to its original shape and size. 6) Please allow up to 24 hours for optimum recovery and airing of the mattress.