King Size Mattresses

Luxuriate in pure comfort night after night with a beautiful king size mattress. Beautifully designed and incorporating the latest sleep research, you’ll discover what a good night’s sleep really means. From hand-tufted softness to mouldable memory foam, you’re sure to find the best king size mattress for you.

Sort
Sort
Applied filters Clear filters Size King Size Brand Sealy Silentnight Sleep Story + 2
  • Save £150
    Was £569 Sale £419
    • Fantastic value Silentnight Mirapocket Serenity Ortho mattress
    • Edge-to-edge support means more sleep space with no ‘roll together’
    • Mirapocket technology with 1400 zoned pocket springs
    or as low as per month (0% APR)
    Quick view
  • Save £300
    Was £1199 Sale £899

    It’s the blend of natural layers and engineered pocket springs that make the Sleep Story Hybrid 2000 mattress so comfortable.

    or as low as per month (0% APR)
    Quick view
  • Save £30
    Was £299 Sale £269

    A Which? Magazine Best Buy, the Silentnight Mattress-Now 3 Zone memory foam roll up mattress offers wide range of features at a great price.

    or as low as per month (0% APR)
    Quick view
  • Save £140
    Was £539 Sale £399

    The Silentnight Mirapocket Serenity 1200 mattress is an award winner and it’s easy to see why. Rated a Best Buy by Which?, it scores top marks for comfort as well as value.

    or as low as per month (0% APR)
    Quick view
  • Save £380
    Was £1499 Sale £1119

    It’s the advanced layers of comfort that make the Silentnight Serenity Cool Lux Gel 3000 Ultra mattress so incredibly comfortable.

    or as low as per month (0% APR)
    Quick view
  • Save £180
    Was £699 Sale £519

    Top to bottom and side to side, the Silentnight Mirapocket Serenity 2000 Memory mattress provides incredible comfort at a fantastic value price.

    or as low as per month (0% APR)
    Quick view
  • Save £160
    Was £619 Sale £459
    • Fantastic value pocket spring and memory foam mattress from Silentnight
    • Edge-to-edge support means more sleep space with no ‘roll together’
    • Mirapocket technology with 1200 zoned pocket springs
    or as low as per month (0% APR)
    Quick view
  • Save £340
    Was £1339 Sale £999

    Superb mattress technology meets luxurious comfort in the Sleep Story Hybrid 3000 mattress.

    or as low as per month (0% APR)
    Quick view
  • Save £170
    Was £669 Sale £499

    Quilted for comfort and finished with body-contouring foam, the Sleep Story Luxe Quilted 1000 mattress offers total surface comfort and support.

    or as low as per month (0% APR)
    Quick view
  • Save £270
    Was £1039 Sale £769

    It’s the advanced layers of comfort that make the medium-firm Silentnight Serenity Latex 1400 mattress such a wonderful sleeping experience.

    or as low as per month (0% APR)
    Quick view
  • Save £90
    Was £339 Sale £249

    Offering layers of superb comfort, the Sleep Story pocket 1000 mattress is a great-value, intelligently designed roll up mattress.

    or as low as per month (0% APR)
    Quick view
  • Save £120
    Was £449 Sale £329
    • Fantastic value spring and memory foam mattress from Silentnight
    • Edge-to-edge support, more personal space, no ‘roll together’
    • Miracoil zoned spring system aligns your spine perfectly
    or as low as per month (0% APR)
    Quick view