Medium Firm Mattresses
Shop medium firm mattresses for all sleep styles – the ideal blend of support and softness. Choose from pocket sprung, memory foam or gel options. All with free next day delivery and a 60-Night Comfort Trial.
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Aspire Natural Cashmere and Silk 3000 Pocket Mattress
Was £289.95
RRP £389.00
Horizon Adventurer 1000 Pocket Memory Mattress
Was £279.95
RRP £550.00
Komfi GelMed Ortho Mattress
Was £614.95
RRP £870.00
Hypnos Burford Ortho Comfort Mattress
Was £714.95
RRP £1,399.00
Simba Earth Apex 6700 Cashgora Mattress
Was £1,290.95
RRP £1,299.00
Bodyshape Value Memory Mattress
Was £179.95
RRP £289.99
Memory Zone 2000 Pocket Mattress
Was £349.95
RRP £519.00
Harrison Spinks Grassington 5750 Pocket Mattress
Was £914.95
RRP £1,389.00
Jay-Be QUEST Q1 Deep e-Spring Childrens Mattress
Was £174.95
RRP £215.00
Simba Earth Escape 4800 Wool Mattress
Was £1,124.95
RRP £1,199.00
Silentnight British Wool 2400 Pocket Mattress
Was £644.95
RRP £926.00
Silentnight Memory Cool 1000 Mirapocket Mattress
Was £389.95
RRP £519.00
Simba Essential Comfort Hybrid 1000 Pocket Mattress
Was £469.95
RRP £499.00
Relyon Repose Gel Fusion 2400 Pocket Mattress
Was £837.00
RRP £1,196.00
Simba Earth Source 2900 Wool Mattress
Was £789.95
RRP £849.00
Layezee Comfort Memory Pillow Top Mattress
Was £259.95
RRP £261.00
Dunlopillo Kareena 1500 Pocket Latex Mattress
Was £821.00
RRP £1,173.00
Silentnight Healthy Growth Snooze Eco Mattress
Simba Hybrid 1900 Pocket Mattress
Was £764.95
RRP £799.00
Millbrook Wool Luxury 1000 Pocket Mattress
RRP £620.91
What does medium firm mattress mean?
Our medium firm mattress range offers balanced support with gentle cushioning. It’s ideal if you want a solid sleeping surface that still feels comfortable.
What level is a medium firm mattress?
Medium firm mattresses are level 3 in our 5-point firmness scale:
- Soft to medium
- Medium
- Medium to firm
- Firm
- Extra firm
Not sure which firmness is right for you? Try one risk-free with our 60-Night Comfort Trial, or explore our mattress firmness guide.
What sizes do medium to firm mattresses come in?
Our medium to firm mattresses come in all standard sizes:
- Small single - 75cm x 190cm
- Single - 90cm x 190cm
- Small double - 120cm x 190cm
- Double - 135cm x 190cm
- King size - 150cm x 200cm
- Superking - 180cm x 200cm
And specialist sizes, too:
- Small single short - 75cm x 175cm
- Single short - 90cm x 175cm
- European double - 140cm x 200cm
- European king size - 160cm x 200cm
- Superking zip and link - 180cm x 200cm
- Emperor - 200cm x 200cm
Who is a medium firm mattress good for?
This firmness suits back and side sleepers who prefer solid support with a little pressure relief. It’s also a great choice for couples with different sleep styles and are looking to compromise on firmness.
What's the best medium firm mattress?
One of our best medium firm options is the Classic Gold Ortho - a Mattress Online customer favourite with a 4.5-star Trustpilot rating. It’s supportive, affordable, and available with our 60-Night Comfort Trial.
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Why buy from Mattress Online?
Free delivery to most locations
Free next working day delivery on most of our mattresses and beds, or upgrade to weekend delivery.
Free 60-night mattress comfort trial
Test your mattress for 60 nights and if you don't like it, simply swap it.
Old mattress disposal
We can collect and recycle your mattress - saving it from landfill.
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