Double Mattresses

What size is a double mattress?

A double mattress measures 4 feet and 6 inches (135cm) in width and 6 feet and 3 inches (190cm) in length, and is designed to sit securely on a double bed. They provide ample space for most couples or single sleepers. For more information on sizing, read our bed and mattress size guide.

How much does a double mattress weigh?

A double mattress typically weighs between 20kg and 50kg, though it depends on what's inside. A pocket spring double mattress is often lighter, while memory foam, latex, and combination double mattresses tend to weigh more due to their denser fillings. Make sure to check your double mattress's weight when choosing, as it will require regular flipping or rotating.

What firmness levels are available for double mattresses?

We offer a range of different firmness grades so you can find the right mattress for your sleeping position. These include:

• Soft double mattresses: Ideal for side sleepers, they allow the hips and shoulders to sink in, helping to relieve pressure points.
• Medium double mattresses: Suitable for back, side, and stomach sleepers or those who move around, they provide a balance of support and comfort.
• Firm double mattresses: Best for back or stomach sleepers, they offer additional support and a firmer surface to keep your spine aligned.
• Very firm double mattresses: Provide maximum support, great for those who sleep on their back.

Types of double mattresses

Each double mattress available has its own features and benefits. To help you, here’s a list of what each offer:

• Pocket spring mattresses: This double mattress is best for couples or those easily disturbed by movement. Its individually wrapped springs provide support and minimise motion.
• Traditional spring mattresses: Best for those on a budget or who prefer a firmer feel.
• Memory foam mattresses: Best for side sleepers or those who prefer more cushioning, memory foam moulds to your body shape, providing pressure-relieving comfort.
• Combination mattresses: These double mattresses combine spring with foam, offering the best support and comfort.
• Gel mattresses: Ideal for those who get hot at night due to their cooling properties.
• Latex mattresses: Naturally cooling, breathable and hypoallergenic, these are great for those who struggle with temperature regulation.
• Natural mattresses: Made with organic materials, these double mattresses are eco-friendly and well-suited to those with allergies.
• Zip and link mattresses: Great for couples with different firmness preferences, they allow you to attach two different single mattresses together to make a double mattress.

Read our mattress types guide for more details.

What is the best double mattress?

The best double mattress for you depends on how you sleep. Side sleepers often get on better with something softer, while back and stomach sleepers usually need firmer support. The most comfortable option is one that keeps your spine aligned and suits your body, your budget, and the way you actually sleep, not what works for someone else. If you’re not sure where to start, take our Sleepmatch quiz to find the best double mattress for you.

What brands of double mattresses are available?

At Dreams, we stock a wide range of trusted mattress brands, all dedicated to giving you a good night’s sleep. You can find well-known brands like Silentnight, Sealy, Relyon, and TheraPur, which offer long-lasting, premium-quality pocket spring, hybrid, or foam double mattresses. Or find the best pressure relief comfort with brands like TEMPUR, Sleepeezee and Hyde & Sleep.

For a more affordable double mattress without compromising on quality or comfort, Flaxby, have a range of spring and foam double mattresses at great value. Or choose a Dream Team or Dreams Workshop double mattress, handmade in the UK and featuring comfy pillow tops.

To learn more, visit our mattress brands page.

How much should I pay for a good double mattress?

Double mattress prices can range from under £200 to well over £1,000. Both ends of the scale have their advantages and disadvantages. Budget options like traditional spring or basic foam mattresses provide adequate support for those without specific concerns. At the higher end, you’ll find premium fillings like cooling technology or handmade craftsmanship. What you need from your sleep, and how long you want the mattress to last, should shape your budget more than the price tag alone. Our mattress buying guide can help you weigh it all up.

Do your double mattresses come with a warranty?

Yes! With our 100-Night Comfort Guarantee, if you’re not loving your mattress after 100 nights of use, we’ll exchange it for a better one. This is to make sure that you get the double mattress of your dreams and help you get the restful sleep you deserve.

If you have more questions or want to try out our double mattresses in person, visit a store near you.