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500+ Beds 
Est. 1956 
Free Delivery Heavy Duty/Reinforced Mattresses
Designed with extra support and durability in mind, reinforced mattresses are constructed using hard-wearing innerspring systems and resilient fillings to provide long-lasting comfort and stability. Built to withstand higher levels of use, many heavy-duty mattresses come with extended guarantees, with some manufacturers offering warranties of up to 15 years for added reassurance.
Reinforced mattresses can also help reduce sleep disturbance, particularly where partners differ in weight or size, by offering more consistent support across the sleeping surface. Available in a range of comfort tensions and sizes from double through to super king, our selection includes reinforced mattresses from trusted brands such as King Koil and Respa. If you’re unsure whether a reinforced mattress is right for you, our Mattress Buying Guide explains the key things to consider before choosing.
Showing 1–12 of 13 results
Respa Eternal Support Small Double Mattress
- 5 Years warranty
- 2 free pillows
- 6 Sizes
- Foam
Respa Eternal Support King Size Mattress
- 5 Years warranty
- 2 free pillows
- 6 Sizes
- Foam
Respa Eternal Support Super King Size Mattress
- 5 Years warranty
- 2 free pillows
- 6 Sizes
- Foam
Respa Luxury Support 2000 Single Mattress
- 10 Years warranty
- 2 free pillows
- 6 Sizes
- Foam
Respa Luxury Support 2000 Small Double Mattress
- 10 Years warranty
- 2 free pillows
- 6 Sizes
- Foam
Respa Luxury Support 2000 Double Mattress
- 10 Years warranty
- 2 free pillows
- 6 Sizes
- Foam
Heavy Duty Mattresses At Dalzell’s
Retailing some of the UK’s and Ireland’s leading heavy-duty mattress manufacturers, Dalzell’s has an excellent selection to browse online or try in-store. Moreover, with our rapid Free Delivery Service throughout Northern Ireland and Counties Cavan, Dublin, Louth, Meath & Monaghan, you’ll not have to wait long to enjoy your new reinforced mattress. We’ll even remove and dispose of packaging and place your new mattress in a room of your choice. We’ll even provide Free Pillows so you can start enjoying a great night’s sleep straight away. Delivery is also available at competitive rates throughout the rest of Ireland. With additional discounts for Multibuy and our Price Promise, you can be sure you’re getting a great deal because we appreciate your business! Call, Email or Visit Us In-store. At Armagh Beds, we’re committed to helping customers choose quality beds and mattresses with confidence. We are accredited as an NBF (National Bed Federation) Premier Retail Champion, offering reassurance that we meet recognised industry standards, and we provide expert advice, showroom support and reliable local delivery — find out more about why customers choose us.