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Protect your products
5-Year Accident Cover £22

We know how important it is to keep your new sleep products safe, but we also know accidents can happen. With Accident Cover, we’ll help you keep your bed and/or mattress in their very best condition.

We are paid by the insurer through commission, which is included in the premium you pay.

So what is covered?
  • Food and drink spills such as coffee or red wine
  • Ink marks from biros, permanent markers etc
  • Make-up and cosmetic stains
  • Accidental damage caused by pets
  • Burns from heated appliances such as straighteners or curlers
  • Rips and tears
  • Damage causing breakage to the frame
What is not insured?
  • Deliberate damage caused by you or any person
  • General wear and tear
  • Accumulation of damage or staining
  • Any structural or manufacturing defects
  • Accidental staining or damage caused by the use of incorrect cleaning products
Subtotal
Pay Now: £0.00 OR Payments from: £0.00
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Goes like a dream

WHY NOT TRY OUR AWARD-WINNING SLEEP TECH?

FREE PILLOWS, DUVETS & MORE WORTH UP TO £836‡

Ends 26/02/2026, offer excludes refurbished mattresses and cannot be used in conjunction with other offers/promotions, and is subject to our Terms.

Essential Hybrid® mattress receives two† AeroDown pillows.
Hybrid® & Source mattress receives two† Hybrid™ pillows plus mattress protector‡.
Hybrid Pro® & Escape mattress receives two† Hybrid™ pillows plus a Hybrid™ duvet and mattress protector‡.
Hybrid® Luxe, Hybrid® Ultra, & Apex mattress receives two† Hybrid™ pillows plus a Hybrid™ 3-in-1 duvet, and a mattress protector.‡

†Except Single size mattresses (receive one pillow).
‡ Mattress protector and duvet/s in size matching the mattress purchase.

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Our products benefit from ongoing innovation. Reviews attributed to a product model reflect views customers have shared for prior design iterations of the same model, as well as the improved iteration offered today.
& 4 Awards
Custom firmness

CustomFlex Pillow Refurbished

£87.45

£87.45

Refurbished price vs new product price on this link

Key highlights

  • Adjustable firmness from interchangeable inner pillows

  • Firmer support from unique foam FlexSprings™

  • Down-like comfort from Simba Renew™ in two layers

  • Cooler sleep from cotton cover with Stratos® technology

  • Improved airflow from open mesh border

  • Washable, zip-off cover for easy care

  • Includes reusable storage bag

Why shop refurbished?

You get to enjoy signature Simba tech for less, we prevent products reaching landfill.

  • Test and inspect, inside and out

  • Replace with brand new, authentic Simba parts

  • Deep clean and sanitise to squeaky clean hospital standards

Why shop refurbished?

    Select your comfort level:

    Medium Medium Firm Firm

    Our CustomFlex pillow enables you to personalise your support to suit your sleeping style and preferred level of firmness with three interchangeable layers: one with innovative foam FlexSprings™ in a cushioned sleeve, and two made from cloud-like Simba Renew™.

    Interchangeable layers, ideal support

    Firmer FlexSpring™ layer 

    Enclosed in a cushioning sleeve – you can’t feel our unique FlexSprings™. Being made from foam, they’re superbly light, sturdy and flexible, providing firmer, stronger support than softer fibres. They’re also breathable, and we’ve designed them to disperse heat for fresher sleep.

    Cushioning Simba Renew™ comfort

    The other two layers of our CustomFlex pillow are filled with soft, springy Simba Renew™. Made from recycled PET fibres and gently combed into down-like, airy layers, it encourages plenty of airflow through the pillow to keep you feeling cool.

    Cooling Stratos® technology

    Temperature testing carried out by HeiQ in November, 2020 on Stratos®-treated vs untreated fabric to measure immediate and continuous cooling.

    The world-first, thermoregulating Stratos® technology on one side of our CustomFlex pillow helps you start cool and stay cool. Up to 3°C cooler than non-treated fabric , it's cool to the touch, prevents the buildup of heat and evaporates moisture, keeping you dry, comfortable and at just the right temperature.

    Menopause Friendly

    Our products that carry the GenM Menopause Friendly symbol can ease, relieve or support one or more of the 48 signs of menopause.

    CustomFlex Pillow: LAYER BY LAYER

    Working together for maximum comfort

    Temperature testing carried out by HeiQ in November, 2020 on Stratos®-treated vs untreated fabric to measure immediate and continuous cooling.

    Award winning tech

    See all awards

    The Telegraph
    Expert Reviews
    Trusted Reviews
    The Sun

    Proud to be a B Corp.
    We’re determined to have a positive impact, socially and environmentally.

    A responsible sleep.
    We use CertiPUR® foam and include recycled materials where possible.

    Less to landfill.
    We offer a Simba-certified recycling and refurbishment service via a trusted third party.

    SUSTAINABILITY  

    A force for good.  

    BRC climate Action Roadmap commended

    Simba are proud to have been awarded Commended for Reducing Waste at the Climate Action Roadmap Showcase for our certified mattress refurbishment programme.

    350,000+ five-star reviews* (and counting)

    Read Reviews

    Excellent

    I am a side sleeper and this pillow offers the perfect blend of firmness and support which I need. I was suffering from neck and shoulder pain previously and this pillow has definitely helped.

    Jagdeep S
    CustomFlex Pillow

    Does what it says!

    Couldn't see how a pillow could stop me overheating and reduce the night sweats but it does! Very comfortable and no longer have to keep swapping pillows or moving positions in bed to keep cool.

    Natalia B
    CustomFlex Pillow

    Fantastic night's sleep!

    After years of trying to find the perfect pillow for side sleeping, the Simba pillow has been the solution - the choice of how to layer the inserts is a game changer!

    E W
    CustomFlex Pillow

    We strive to deliver the best possible products and services. Reviews attributed to a model of a product or to services reflect reviews left for previously offered design iterations of a model of product or a service, as well as the optimized and improved iteration of the product or service offered today.

    Reviews summary

    This summary was created by AI, based on recent reviews.

    Customers generally find the CustomFlex Pillow to be a high-quality product that significantly improves sleep and reduces aches and pains, especially in the neck and shoulders. Many reviewers specifically highlight the adjustability of the pillow, praising its layered design that allows them to customise the firmness and height to their personal preferences, with options for softer or firmer configurations. While some found the pillow too firm initially, they were often able to find a comfortable setting through experimentation. A significant number of users reported a reduction in neck pain and improved sleep quality, with some calling it the "best pillow ever" and a worthwhile investment despite the cost.

    Happy Sleepers

    We rest better when we know your honest opinion of us. Check out reviews from Simba sleepers below.

    £87.45

    WIN BACK THE COST OF YOUR FIRST ORDER

    Subscribe to our newsletter, order your first mattress online, and we’ll enter you into a monthly draw to win back the entire cost.

    Please note the finance figures shown are for illustrative purposes only. Details of the actual figures will be available during the finance application process. Subject to affordability, age & status, minimum spend applies.

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