Eve Sleep

memory-foam

Foam that changes shape slowly and gradually as you lay on it.  Praised for conforming ability, pressure relief, and motion isolation.

foam

Padding material used in mattresses as a supplement or alternative to an Innerspring Unit.

Much too soft

pressure-relief

Minimizing pain or loss of circulation in pressure points (eg, hips and shoulders).

surface-integrity

How well it resists body impressions and/or lumpiness.

6-12 months

Less than a year

Shows significant comfort and/or support loss

Very worn

Partial lifespan

prices

Constant pressure point soreness or loss of circulation

Very Poor

Innerspring / Traditional

comfort

How good it feels to you when you first lie down.

edge-support

How well it prevents "roll-off" by having a strong, sturdy edge.

support

How well it supports your back throughout the night, so you wake up free of back pain.

King

Sleep much less soundly or consistently since owning this mattress.

Much worse

Approved

Always have back aches or stiffness related to this mattress

Myself + my partner

Fair

**To other reviewers - wait for a year before posting!!**
We took delivery last February, the 100 days was the appeal, a decent trial we thought, as do so many who have reviewed here and elsewhere...but, 100 days is the time this damn thing needs to settle, soon after, its a different story.
After about 6 months, we started to notice distinct dips where we lay. When you tried to move you found yourself unable to. Eventually after about 10 months we found the foam had weakened, its viscosity had reduced which meant you sunk so far, the "comfort" layers were doing nothing, and points like shoulders and hips were just resting on the firmer foam beneath. After a while (for a side sleeper) this becomes very uncomfortable. Both my wife and I after 11 months, actually experienced pain in the tops of our arms and hips we associate with the mattress, proved by getting a better nights sleep on the sofa, where I have been for the last week.
When we got it, it was firm and you got that wonderful memory foam sinking feeling it was great, a year down the line its as soggy as the sponge I do the dishes with. A GOOD mattress should last at least 5 years according to all manufacturers, but it seems Eves lasts 1. So I have no choice, take the new one, sell it (half the value of new) if I am lucky, or use it again and go through this ALL over again in a year!!
So I mail them, we do an email ping pong for 3 weeks, taking pictures of me and other random items on the mattress, despite me pointing out that time / body heat / room temp will affect it, they agree that there IS a defect, from a picture of my feet standing sunk into it by 12-15cm rather than the guide of 2-3cm (lol). No refund (yes its in their terms) so there goes £650+! Instead, they want to replace it with another, so in a years time we can go through this ALL over again, wonderful.
So we arrange a day, but I insist the removal and replacement come together, even though they say it normally will be on 2 separate days. The reason, I don't want to take 2 days off waiting

Dont review till you havehad it a year!!!!!

Very poor

Moderately satisfied with the manufacturer's response to my warranty claim or other problems

Slightly too soft

back-support

Holding your spine in a proper "neutral" position (roughly the same shape it has when you are standing) while sleeping.

Performs and feels about the same as when it was new

Like new

customer-service

Customer satisfaction before, during and after purchase. 

smell

Good

I had researched mattresses for about a month and liked the price point and sleep trial of the online mattress space.  Eve stood out to me because of its price point and established success in the UK.
My husband describes it best by stating it feels like you're sleeping on a sandbag.  There is no "push back" feeling of support.  It is not a too hard or too soft issue, but a lack of body support.
I'm not saying that this is a bad mattress, I am only accounting for our experience. I'm a 200lb female who needs relatively strong lower back support, and the Eve has none; regardless of sleeping position.  My husband is a bit lighter than I, and woke each morning experiencing increasingly worse shoulder, hip and backpain.  
The word "woke" is relative because during those three weeks we hardly slept.  There was a lot of tossing and turning, getting up to walk around, and overall struggle to make it through the night. Sometimes, after failed attempts to get comfortable, I'd go sleep with my kids knowing I needed to get some rest for work the next day.
Now, I understand that there is an adjustment period for a new mattress that many times you just need to just fight your way through, but this experience only continued to get worse for us. 
So far the customer service has been responsive and pleasant. We're returning ours and are going to try a hybrid or go back to innerspring.

Disappointed and painful

Poor

Very satisfied with the manufacturer's response to my warranty claim or other problems

Eve
Mattress Ratings & Reviews

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Eve

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Eve Mattress Ratings & Reviews

Ratings Summary Eve

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Eve
Mattress Ratings & Reviews

Ratings Summary
Eve