Delivery was 2 days late and the help from CS can after it eventually turned up, it’s clear Wayfair is just a third party seller so be warned with warranties. 

As for the mattress itself it came in clear wrapping it’s nice and thick 20cm it says cool on it but both me and my partner fell warm in it compared to others we’ve had as although it’ stated as firm you sink into the upper foam layer completely. The lower layer is pretty firm but due to the contrast in firmness the edge of the mattress offer little support. 

All said I do recommend this mattress as the super king-size one we got for the is an excellent quality at a good price. But it is probably the same uk made ones found online for half the price. I also highly suspect that if you order this item it’s actually several items from different manufacturers so this and other reviews may not be as helpful as you’d hope.