A pocket spring unit encapsulated in foam makes for an ideal mattress choice if youre looking for both support and comfort the vogue harmony 800 pocket sprung mattress features an 800 pocket spring system encapsulated in foam with polyester fillings for a hypoallergenic mattress it has a micro quilted waterfall effect cover made from soft knit natural touch fabric and the stitched border features 4 flag stitched handles and air vents which help to keep the mattress freshplease note spring