Shop Soft Mattresses Online or In-Store at M6 Beds
Discover deep, pressure-relieving comfort with our soft mattresses, designed to gently cradle the body whilst still providing essential support. Ideal for side sleepers, lighter frames, and anyone who finds a standard mattress too firm, our soft mattress range offers a plush, enveloping feel that cushions every curve. Browse our full range below, available in all standard UK sizes.
What Is a Soft Mattress?
A soft mattress sits at around 2–3 out of 10 on the firmness scale (where 1 is ultra-soft and 10 is extra-firm) — offering noticeably more give than a medium or medium-soft option. You sink further into the comfort layers, which closely contour the hips, shoulders, and joints to relieve concentrated pressure. Beneath those comfort layers, a supportive core — whether pocket springs, high-density foam, or a hybrid construction — prevents excessive sinking and helps maintain spinal alignment. The result is a plush mattress that feels luxuriously cushioning without bottoming out.
Who Should Choose a Soft Mattress?
- Side sleepers — A soft mattress allows the hips and shoulders to sink in deeply, distributing weight evenly and reducing the risk of waking with aches and numbness.
- Lighter-weight sleepers (roughly under 10 stone) — Lighter body weights don't compress a mattress as much, so a soft construction responds where firmer mattresses can feel rigid and unyielding.
- Those with joint pain or pressure-point sensitivity — If you experience discomfort at the hips, shoulders, or knees, a soft mattress directly cushions these areas.
- Those who prefer a plush, cloud-like feel — If you want to sleep in your mattress rather than on top of it, a soft option delivers that enveloping sensation.
- Older sleepers seeking cushioning — As we age, joints and soft tissue can become more sensitive to firmer surfaces; a soft mattress can offer welcome relief.
If lower back support is your primary concern, a medium or medium-firm mattress may be more appropriate as soft mattresses prioritise cushioning over rigid support. If in doubt, consult a GP or physiotherapist before purchasing.
Soft Mattress Types at M6 Beds
Soft Pocket Sprung Mattresses
Individually encased springs move independently, with softer-tension coils and generous comfort layers delivering a responsive, breathable, and durable plush feel.
Soft Memory Foam Mattresses
Moulds closely to your shape in response to body heat and weight, providing deep pressure relief around the hips and shoulders whilst minimising motion transfer — ideal for couples.
Soft Hybrid Mattresses
Pairs a pocket spring base with foam, latex, or gel comfort layers — combining the bounce and airflow of springs with a plush, contouring surface.
Soft Latex Mattresses
Springs back quickly rather than slowly conforming, making it well-suited to those who find memory foam too heat-retentive, whilst tending to sleep cooler than all-foam options.
Why Choose M6 Beds for Soft Mattresses?
- North West showrooms — Try before you buy. Visit our UK bed & mattress showrooms and test mattresses in your preferred sleeping position, with expert guidance on hand.
- Wide range — Pocket sprung, memory foam, hybrid, and latex options across every UK size, all in one place.
- Expert advice — Our in-store team can assess your sleep style, body weight, and budget — something no online filter can replicate. Firmness is subjective, so trying a soft mattress in person is the most reliable way to judge whether it's right for you.
- Confidence to buy — We offer straightforward warranty and returns support, as well as 0% finance and delivery & disposal services.
Browse online or visit our Alsager and Northwich showrooms to try them in person.
Soft Mattresses: Sizes & Care
Available Sizes
We stock soft mattresses in all standard UK sizes, including: single mattress (90 × 190 cm); small double mattress (120 × 190 cm); double mattress (135 × 190 cm); king size mattress (150 × 200 cm); and super king (180 × 200 cm).
Not sure which size fits your room? Our bed & mattress size guide covers every UK standard dimension.
Pairing with the Right Base
Your base affects how your mattress performs; browse our full range of beds & bed frames to find the right one for your home. A soft mattress on a sprung slatted base will feel even softer, whilst a solid-top divan provides a slightly firmer foundation. On a slatted base, ensure slats are no more than 7 cm apart to prevent sagging and protect the mattress layers.
Maintenance and Lifespan
Rotate your mattress head-to-toe every three months and use a mattress protector from day one to guard against moisture and dust. A well-made soft mattress typically lasts 7–10 years, though all-foam constructions may show wear sooner than pocket-sprung or hybrid options. Because soft mattresses have thicker comfort layers, regular rotation is especially important to prevent lasting body impressions. Check individual product warranties for manufacturer guarantees.
Is a soft mattress suitable for back pain?
It depends on the cause. If pain stems from a mattress that is too firm — creating pressure points rather than allowing natural spinal curvature — a softer option may offer relief, particularly for side sleepers. However, for chronic lower back pain, a medium or medium-firm mattress is more commonly recommended by healthcare professionals. For personalised guidance, visit our showroom or consult a GP or physiotherapist.
Can heavier sleepers use a soft mattress?
Heavier sleepers (roughly over 14–15 stone) tend to compress soft comfort layers more deeply, which can reduce support and affect spinal alignment. A medium or medium-soft mattress is generally a better starting point for heavier builds. If you prefer a plush feel but need more support, a hybrid construction with a firm spring core and soft comfort layers can offer the best of both.
Will a soft mattress work for two people with different preferences?
It can work well where one partner prefers a softer feel and the other has no strong preference. If both partners have firmly opposing requirements, a zip-and-link mattress allows each side to be a different firmness entirely.
Will the same mattress feel different on different bases?
Yes. The same soft mattress can feel noticeably softer on a sprung slatted base and slightly firmer on a solid divan. Wherever possible, try your mattress on the base you intend to use.
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