Tweak Slumber

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Tweak Slumber Mattress discount codes and coupons January 2023

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Current Tweak Slumber Mattress discount codes and promo codes


Save £120 off your Nrem customisable mattress

Plus 100-night free trial on Nrem mattress at Tweak Slumber. T&Cs apply.
Deal Limited time!

Shop the DUO Clearance now and save 50%!

Use the code to enjoy £140 off any mattress at Tweak Slumber. T&Cs apply.

DivideBuy monthly installments with 0% Interest available

T&Cs apply.

100-night sleep trial on Nrem mattress

Enjoy 100-night FREE trial on Nrem mattress at Tweak Slumber. T&Cs apply.

More about Tweak Slumber

With 30 years of experience in the furniture industry, Tweak Slumber set out to do something different a few years ago. That mission was to help you sleep better, and to sell mattresses that could be customised by using comfort changing technology. After living with a sleep disorder for 10 years, Tweak Slumber co-director and founder Charlie Oulton knew how much a good night’s sleep improved his mood and wanted to help others achieve the same.

Whether you want a different firmness than your partner does, or you’d prefer to have different firmnesses from your head down to your feet, Tweak Slumber’s made in the UK mattresses can be tailored exactly to your needs. You can try one in your home for 100 days to make sure it’s right for you.

Best-selling products from Tweak Slumber

DUO Split Comfort Mattress

DUO Split Comfort Mattress from Tweak Slumber

If you prefer a soft mattress while your partner prefers firm, you can customise your mattress to suit. Just select either super soft, medium or firm foam, and each side of your mattress will be tailored to keep you both happy and comfortable. Available in Double, King and Super King.

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Nrem Mattress

Nrem Mattress from Tweak Slumber

The Nrem is a hybrid, made up of pocket springs and foam. With five customisable zones, you can tailor this mattress to have comfort and support in just the right places. When you receive the mattress, simply unzip the cover and arrange the foam inserts in whatever way you prefer. Available in Single, Double, King and Super King.

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Tweak Original Pillow

Tweak Original Pillow from Tweak Slumber

Pillows always losing shape? This Tweak pillow is made from highly resistant 100% Cold Cure PU foam and will always feel cool thanks to air holes on both sides.

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Tweak Slumber Hypo-allergenic Mattress Cover

Tweak Slumber Hypo-allergenic Mattress Cover from Tweak Slumber

Want to keep your mattress looking like new? This hypoallergenic cover can keep your Nrem or Duo mattress fresher for longer.

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Additional Nrem Mattress Foam Inserts

Additional Nrem Mattress Foam Inserts from Tweak Slumber

If you buy a Nrem mattress and decide that you need more inserts of a particular comfort level, you can order additional ones to customise your mattress even more. Foam densities available range from soft through to extra firm.

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Additional DUO Mattress Foam Inserts

Additional DUO Mattress Foam Inserts from Tweak Slumber

After using a Duo mattress for some time, you find that you would prefer a different comfort level, you can purchase a foam insert in comfort levels ranging from soft to extra firm.

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Tweak RestOn Sleep Tracker

Tweak RestOn Sleep Tracker from Tweak Slumber

Find out more about how you sleep, by using this sleep tracker. It monitors your sleep cycle, body movement, heart and respiratory rate throughout the night and provides tips on improving your sleep.

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Tweak Slumber Luxury Better Sleep Kit

Tweak Slumber Luxury Better Sleep Kit from Tweak Slumber

Have a loved one that doesn’t sleep very well? This sleep kit is filled with lavender infused products and is a great gift for someone that needs help with relaxing.

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Tweak Slumber Review | Pros and Cons


  • 100-night sleep trial
  • 10-year warranty
  • Removable and washable mattress covers
  • Customisable mattresses
  • Additional foam inserts available if you want to change your comfort level


  • Delivery is not free to the Republic of Ireland
  • Small range of products

How does Tweak Slumber delivery work?

You can order your Tweak Slumber mattress directly from the brand’s website as they now deliver to the Republic of Ireland. Shipping costs £90 and you should allow for a longer lead time than the standard 15 day free delivery for mainland UK.

What forms of payment does Tweak Slumber accept?

  • Visa
  • MasterCard
  • American Express
  • PayPal

What is the Tweak Slumber returns policy?

Tweak Slumber recommends that you try your new mattress for at least 30 days, as this will allow your body to adjust to the new sleeping surface. If within 100 days after receiving your mattress you decide that it’s not suitable for you, you can return it for a full refund or customise the comfort free of charge. This service is free for mainland UK, but extra charges may apply for the Republic of Ireland. Any free gifts that are received with the mattress will also need to be returned, otherwise you’ll be charged for them at their retail cost.

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Our top mattress promo codes January 2023

OTTY SleepOTTY Sleep
Mobile Exclusive

SAVE an additional €10 discount on top of any OTTY Sleep discount

Mobile Exclusive
OTTY SleepOTTY Sleep

€100 off plus two Deluxe Pillows (worth €110) for just €50

Tweak SlumberTweak Slumber

Save £120 off your Nrem customisable mattress


HUGGE mattress FREE trial for 100 nights

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