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Home › Medium Firm Mattresses

Medium Firm Mattresses

Medium firm mattresses are one of our most popular comfort levels as they offer the best of both worlds for sleepers who like a little bit of softness for comfort combined with a firm support system. Browse our full range of medium firm mattresses below.

  • Price: —

13 products

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    Duke Comfort Mattress

    From £213 Original price was: £213.£170Current price is: £170.40.
    Order Now and Get by April 4, 2026
  • Burley Mattress

    Burley Mattress

    From £990 Original price was: £990.£495Current price is: £495.
    Order Now and Get by April 15, 2026
  • Amatrix Mattress

    Amatrix Mattress

    From £1060 Original price was: £1060.£530Current price is: £530.
    Order Now and Get by April 15, 2026
  • Jet Memory Mattress

    Jet Memory Mattress

    From £1250 Original price was: £1250.£625Current price is: £625.01.
    Order Now and Get by April 4, 2026
  • Emerald Mattress

    Emerald Mattress

    From £910 Original price was: £910.£637Current price is: £637.
    Order Now and Get by April 15, 2026
  • Nova Soothe Mattress

    Nova Soothe Mattress

    From £885 Original price was: £885.£664Current price is: £663.76.
  • Citrine Mattress

    Citrine Mattress

    From £810
    Order Now and Get by April 15, 2026
  • Gel Plush Comfort Mattress

    Gel Plush Comfort Mattress

    From £1062 Original price was: £1062.£850Current price is: £849.60.
    Order Now and Get by April 4, 2026
  • Aura Essence Mattress

    Aura Essence Mattress

    From £1138 Original price was: £1137.50.£853Current price is: £853.13.
    Approximate Delivery Time: 1 - 2 Weeks
  • Nectus Pure Soothe Mattress

    Nectus Pure Soothe Mattress

    From £1115 Original price was: £1115.£892Current price is: £892.01.
    Order Now and Get by April 29, 2026
  • Ocean Care Mattress

    Ocean Care Mattress

    From £1653 Original price was: £1653.05.£1212Current price is: £1212.
    Order Now and Get by April 29, 2026
  • Asteria 4768 Mattress

    Asteria 4768 Mattress

    From £1557 Original price was: £1557.05.£1241Current price is: £1240.80.
  • Motion Luxe 5000 Mattress

    Motion Luxe 5000 Mattress

    From £2370 Original price was: £2370.£1896Current price is: £1896.

What is a medium firm mattress?

A medium firm mattress is a sleep surface that falls in the middle of the firmness scale, providing a balanced level of support and comfort for individuals who prefer a mattress that is not too soft or too firm. A medium firm mattress is rated a ‘3’ on our scale of firmness, with 1 being softest and 5 being the firmest.

What’s the best medium firm mattress?

The best medium firm mattress for you will depend on your specific preferences. We offer everything from small singles to super king size medium firm mattresses with memory foam, pocket sprung and natural filling mattresses available. One of our most comfortable medium firm mattresses is the 5’0″ King Size Bamboo Breathe 6000 Mattress. With its large size and combination of 6,000 pocket springs alongside a memory foam layer make it an incredible comfortable medium firm mattress.

Is a medium firm mattress good for side sleepers?

Yes, a medium firm mattress can be a good option for side sleepers. Side sleeping is a common sleep position, and it can put pressure on the shoulders and hips if the mattress is too firm. However, a mattress that is too soft can lead to improper spinal alignment, which can cause pain and discomfort over time. A medium firm mattress provides a balance between support and comfort, and it can help keep the spine aligned while also providing enough cushioning to relieve pressure points.

Is a medium firm mattress good for your back?

Yes, medium firm mattresses can be good for your back. A medium firm mattress can provide a balance between support and comfort, which can help keep the spine in proper alignment while also cushioning pressure points. 

Buy medium firm mattresses and more with Sussex Beds

Browse our full range of medium firm mattresses online, or take a look at our medium soft, medium, firm or extra firm options. UK delivery, assembly service and disposal of existing furniture services available

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