What our reviewers found
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The Ferndale Mirapocket Mattress is a mattress in the Dreams lineup that sees us reviewing a fairly decent all-rounder that ticks all the main criteria necessary to get a good nights sleep.
To start, pocket springs. This mattress has a ton of them. For those that don't know, pocket springs are a support layer in the mattress and, in my opinion, the best support system money can buy with the typical rule of thumb being the more, the merrier. Moving on to the comfort layer we've got a fairly safe choice here from Silentnight in the way of Eco Comfort Fibres. These fibres represent the mattress filling which is responsible for a large portion of the comfort. The Eco Comfort Fibres have been proven to work well with this pocket spring setup on offer and you have the benefit of helping save the environment while you shop as all eco comfort fibres are eco-friendly, flame retardant, hypoallergenic and fully recyclable...they're super comfy too.
Onto the outer layer and we have a soft quilt fabric, common to many mattresses in any retailers line-up in part due to their relatively hard wearing yet soft and breathable fabric all of which comes together to produce a luxurious and complete package.
With a 5-year guarantee on this product, it helps showcase just how much trust Silentnight have in this product.
Reviews for the Silentnight Ferndale 800 are mostly positive, and comfort is what owners write about more than anything else. One owner wrote "Super comfortable from the first night", another "I’ve had the best sleep ever from the first day it arrived!". Value for money comes up again and again ("Well worth the money, great sleep with this product") and a fair few mention waking up without the back ache their old mattress gave them. For me, this mattress represents great quality at an affordable price from a brand you can trust.
Negative reviews are far fewer, and they come in two kinds. The first is firmness: some owners found it harder than the Medium label led them to expect, one writing "was advertised as medium but I find it is too hard", while a few went the other way, one calling it "Slightly softer than I would usually go for". The second is the springs, with a small number of owners feeling them through the top or seeing the mattress dip early on: "i can tell when i am lying on the springs", and "the spring has started to imprint". Given the high quality pocket spring system we do not expect this to be a widespread issue. Springs can dip over time and usage but we normally see this in open coil traditional spring products rather than pocket springs.
A fine addition to the range and one that should be suitable for the vast majority of people. I love it.
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Written by
Ray Summer , Health Content Writer & Editor
Corrections When we get something wrong, we fix it and say so here. All corrections
11 October 2026 We said guarantees of up to 8 years were available on this mattress. It has a 5-year guarantee.