Skip to Content
Track OrderReturnsStoresHelp
Argos logo
Use up and down arrows to review and enter to select. Touch device users, explore by touch or with swipe gestures.
Shop
AccountWishlistTrolley
HSTS Pixel

Thick Mattress Toppers

Snuggle up with our thick mattress toppers from trusted brands such as Silentnight, Slumberdown, and Panda London. Choose from memory foam and anti-allergy designs, cooling bamboo covers and hotel-inspired comfort. Perfect for adding extra cushioning, support or a plush finish to any size mattress: sleep just got an upgrade.

Filters
    Category
    New
    Offers & Clearance
    Bed size
    Brands
    Price
    Customer Rating
      42 products
      Silentnight Airmax 8cm Mattress Topper
      Rating 4.5 out of 5, from 1427 reviews
      From
      £45.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Silentnight Bounceback 2.5 Mattress Topper
      Rating 4.3 out of 5, from 81 reviews
      From
      £24.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Silentnight Airmax 5cm Mattress Topper
      Rating 4.5 out of 5, from 4751 reviews
      From
      £35.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Silentnight Hotel 10cm Mattress Topper
      Rating 4.6 out of 5, from 82 reviews
      From
      £55.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Silentnight Super Snuggly 10cm Mattress Topper
      Rating 4.8 out of 5, from 150 reviews
      From
      £48.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Silentnight Deep Sleep 10cm Mattress Topper
      Rating 4.6 out of 5, from 196 reviews
      From
      £49.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      CLEARANCE BADGE
      Silentnight  Wellbeing 8cm Mattress Topper
      Rating 4.1 out of 5, from 70 reviews
      Lowest Price Ever
      From
      £22.66
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Aidapt Cool 5cm Mattress Topper
      Rating 4.7 out of 5, from 826 reviews
      From
      £40.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Silentnight Deep Sleep 2.5cm Mattress Topper
      Rating 4.6 out of 5, from 2791 reviews
      From
      £24.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Panda Memory Foam 5cm Mattress Topper
      Rating 4.8 out of 5, from 6702 reviews
      From
      £100.00
      Free Delivery
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Silentnight Anti-Allergy 2.5cm Mattress Topper
      Rating 4.6 out of 5, from 1026 reviews
      From
      £24.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Silentnight Soft Like 2.5cm Mattress Topper
      Rating 4.6 out of 5, from 544 reviews
      From
      £25.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Habitat Anti-Allergy 3cm Mattress Topper
      Rating 4.5 out of 5, from 111 reviews
      From
      £28.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Silentnight Hotel 2.5cm Mattress Topper
      Rating 4.6 out of 5, from 1943 reviews
      From
      £28.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Silentnight 5cm Mattress Topper
      Rating 4.5 out of 5, from 1398 reviews
      From
      £110.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Silentnight Airmax 5cm Mattress Topper
      Rating 4.4 out of 5, from 54 reviews
      From
      £40.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      new badge
      Slumberdown Gel Memory Foam 5cm Mattress Topper
      From
      £65.00
      Free Delivery
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Habitat Supersoft 2cm Mattress Topper
      Rating 4.5 out of 5, from 242 reviews
      From
      £22.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Slumberdown Airstream 4.5cm Mattress Topper
      Rating 4.4 out of 5, from 576 reviews
      From
      £78.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Slumberdown Soft & Huggable 2cm Mattress Topper
      Rating 4.4 out of 5, from 131 reviews
      From
      £24.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Dormeo Octasmart 7cm Mattress Topper
      Rating 4.1 out of 5, from 402 reviews
      From
      £179.00
      Free Delivery
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      new badge
      Slumberdown Wonderful Wool 2cm Mattress Topper - King
      £55.00
      Free Delivery
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      free del
      Silentnight Impress 7cm Mattress Topper
      Rating 4.7 out of 5, from 141 reviews
      From
      £169.00
      Free Delivery
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      The Fine Bedding Company Spundown 3cm Mattress Topper
      Rating 4.8 out of 5, from 55 reviews
      From
      £70.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Silentnight 2.5cm Mattress Topper
      Rating 4.4 out of 5, from 1143 reviews
      From
      £70.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      free del
      Sealy Anti Allergy 4cm Mattress Topper
      Rating 4.7 out of 5, from 60 reviews
      From
      £28.00
      Free Delivery
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Slumberdown Super Support 4cm Mattress Topper
      Rating 4.2 out of 5, from 732 reviews
      From
      £39.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Dormeo Octasmart Essential 5cm Mattress Topper
      Rating 4.2 out of 5, from 3754 reviews
      From
      £129.00
      Free Delivery
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Dormeo Octaspring Classic 7cm Mattress Topper
      Rating 4.2 out of 5, from 239 reviews
      From
      £230.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Silentnight Heat Genie 2cm Mattress Topper
      Rating 4.4 out of 5, from 35 reviews
      From
      £32.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      CLEARANCE BADGE
      Argos Home 3cm Mattress Topper - Kingsize
      Rating 4.1 out of 5, from 70 reviews
      Save 25%
      £40.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Silentnight Wellbeing 8cm Mattress Topper
      Rating 4.0 out of 5, from 32 reviews
      From
      £199.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      new badge
      Snuggledown Temperature Control 2.5cm Mattress Topper
      From
      £34.00
      Free Delivery
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      CLEARANCE BADGE
      Silentnight Ultrabounce 2.5cm Mattress Topper - Double
      £21.33
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      CLEARANCE BADGE
      Argos Home 3cm Mattress Topper - Single
      £45.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      free del
      Silentnight Orthopaedic 3cm Mattress Topper
      From
      £46.00
      Free Delivery
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Slumberdown Thermal Nights 2.5cm Mattress Topper
      Rating 3.7 out of 5, from 6 reviews
      Lowest Price Ever
      From
      £24.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Emma Sleep Flip 6cm Mattress Topper
      Rating 3.8 out of 5, from 102 reviews
      From
      £146.00
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Silentnight Cooling Copper 2.5cm Mattress Topper
      From
      £44.00
      Free Delivery
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      new badge
      Snuggledown Anti Allergy 2.5cm Mattress Topper
      From
      £34.00
      Free Delivery
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      new badge
      Emma Sleep Original Pro Memory Foam 9cm Mattress Topper
      Rating 3.9 out of 5, from 105 reviews
      From
      £228.00
      Free Delivery
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      See more related results forthick mattress topper

      CLEARANCE BADGE
      Silentnight Coverless 10cm Mattress Topper - Single
      Rating 4.3 out of 5, from 123 reviews
      £22.50
      Choose options

      Sign in or register to save items to your account. Simply tap the heart again to remove.

      Related categories

      Buy Mattress Toppers OnlineDouble Mattress ToppersSingle Mattress ToppersKing Size Mattress ToppersSilentnight Mattress ToppersDouble Bed Mattress ProtectorsMattress ProtectorsSmall Double Mattress ToppersMemory Foam Mattress ToppersWaterproof Mattress Protectors
      Thick Mattress Toppers | Argos