Single Mattresses
Find your ideal single mattress - perfect for kids, teens, and solo sleepers. Choose from soft to firm comfort levels in memory foam, pocket sprung, and hybrid mattresses. Shop trusted UK brands like Silentnight and Emma, with free next day delivery and a 60-Night Comfort Trial.
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SleepSoul Heaven 1000 Pocket Gel Mattress
Was £244.95
RRP £305.99
Horizon Adventurer 1000 Pocket Memory Mattress
Was £279.95
RRP £550.00
Sealy Steeple Ortho Plus Mattress
Was £384.95
RRP £599.00
Gainsborough Mayfair 1000 Pocket Ultra Firm Mattress
Was £374.95
RRP £449.00
Silentnight Athens 1400 Mirapocket Ortho Mattress
Was £324.95
RRP £407.00
Mlily Bamboo+ Memory 800 Pocket Mattress
Was £259.95
RRP £510.00
Jay-Be Sleep Smart e-Pocket Childrens Bunk Mattress
Was £174.95
RRP £200.00
Sleepeezee Luxury 1400 Pocket Mattress
Was £409.95
RRP £549.00
Silentnight UltraGel 1000 Mirapocket Pillow Top Mattress
Was £489.95
RRP £619.00
Hypnos Marlow Ortho Deluxe Mattress
Was £889.95
RRP £1,645.00
Millbrook Wool Luxury 4000 Pocket Mattress
Was £549.95
RRP £961.80
Silentnight Ortho Dream Star Miracoil Mattress
Was £234.95
RRP £295.00
Emma Helix Hybrid Mattress
Was £689.00
RRP £999.00
Sealy Posturepedic Elevate Ultra Arden Memory Mattress
Was £1,169.95
RRP £1,979.00
Emma Diamond Hybrid Mattress
Was £679.00
RRP £1,119.00
Sealy Posturepedic Elevate Blackwood Mattress
Was £774.95
RRP £1,299.00
Hypnos Hemsworth Deluxe Mattress
Was £499.95
RRP £856.00
Silentnight 800 Mirapocket Mattress
Was £234.95
RRP £304.00
Relyon Lydia 3050 Pocket Pillow Top Mattress
Was £779.95
RRP £1,252.00
Rock Hard Ultra Firm Mattress
Was £269.95
RRP £400.00
What size is a single mattress?
All of our single mattresses measure 3' x 6'3" (90cm x 190cm) - also known as 3ft single bed mattresses - making them ideal for kids, teens, solo sleepers and spare rooms.
Can an adult sleep on a single mattress?
Yes, single mattresses can comfortably support most adults. But if you're over 6ft, we recommend upgrading to a king size for extra length to stretch out and sleep comfortably.
What firmness options are available for single mattresses?
We stock single mattresses in every firmness level to suit your sleep style:
- Soft-medium - gentle cushioning
- Medium - balanced support for most sleepers
- Medium-firm - versatile support with a slightly firmer feel
- Firm - ideal for back sleepers
- Extra firm – our firmest feel
Not sure which firmness is right for you? Read our guide to mattress firmness for help choosing your best match.
How much should I spend on a single mattress?
At Mattress Online, our single mattresses range from around £140 to £1,500+, depending on the brand and materials.
- Budget: from £140 - great value for spare rooms or growing teens
- Mid-range: £200-£300 - ideal for everyday comfort and support
- Premium: £600-£1,500+ - handcrafted luxury from the UK’s best brands
Whatever your budget, we’ve got good quality single mattresses ready to deliver as soon as tomorrow.
Which is the cheapest single mattress?
Our cheapest single mattresses start from just £140 or less, and with our regular single mattress sales, you’ll often find even more great deals.
We work directly with trusted UK brands like Silentnight, Sealy, and SleepSoul to bring you the best price on quality single mattresses - without compromising on comfort or service.
Whether you’re after a spare room essential or a single bed mattress for everyday use, we’ve got the best price options in stock and ready to ship.
Do you offer next day delivery on single mattresses?
Yes, order your single mattress before 4pm for free next day delivery across most of the UK.
- Delivery 7 days a week
- Choose your preferred delivery date at checkout
- Handled by our expert local or national teams
We’ve delivered over 800,000 mattresses across the UK - so you can rest easy with Mattress Online.
Advice and buying guides
See what our customers say about us
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.
Sales Enquiries
Mon-Sat: 9:30am - 5:30pm
Sunday: 10am - 4pm
Customer Service
Mon-Sat: 9:30am - 5:30pm
Sunday: Closed
customerservice@mattressonline.co.uk
