Dimensions H135 x W190 x D22cm Features . Tension Medium/FirmTreat yourself to the Relyon Bee Calm Hybrid mattressWith its deep layer of pressure-relieving memory foamContains 1100 supportive pocket springs encased in foamAnti-dust mite foam and a 5 year guarantee offer peace of mindStandard UK double size arrives rolled to quarter of size  Pocket springs move independently and so provide the best postural support. The individual pocket springs follow and support your body shape and weight.Designed to provide excellent levels of support.The springs are encased in foam reinforcing the mattress edges to allow use of the whole surface of the mattress as a sleeping area.High quality memory foam with pressure relieving properties contours to the body for perfect support.The Superflex support foam and cover are breathable promoting restful sleep.Dust mites cannot survive in the foam allowing a healthy environement and peacful sleep.No need to turn but regular rotation will extend its lifeCompressed rolled and vacuumed packed to around a quarter of their full size.Easily fits into a car to transport. Easier to transport upstairs through small stairways and loft spaces.Once in the room of your choice the roll up mattress can be unpacked in minutes then wait just 2 hours and the mattress is ready to use.Unroll this mattress within 1 month of purchase to ensure it expands to its full intended size and comfortThis mattress is suitable for use on divan bases and slatted bases where the slats have gaps no greater than 7cm between them.For your peace of mind Relyon offer a 5 year guarantee.  DELIVERY RESTRICTIONS   . Please note we are only able to ship Relyon  to UK Mainland postcodes. We are unable to ship to Ireland Northern Ireland Scottish Highland or the Channel Islands.  .