• 18cm gel memory foam mattress small double
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18cm Gel Memory Foam Mattress – 4ft Small Double

18cm Gel Memory Foam Mattress – 4ft Small Double

£169.99 GBP
£169.99 GBP
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If a full double crowds your room but a single feels too tight, the 18cm gel memory foam mattress in 4ft small double is the sensible middle ground. It gives one sleeper generous width, or two a snug but workable night, while the gel-infused foam is designed to help the surface feel less warm than traditional memory foam.

Why a small double suits smaller rooms

Small doubles measure around 120cm wide, leaving walking space in box rooms, loft conversions and spare bedrooms. The 18cm depth sits comfortably on most standard bed bases without towering over the frame.

Specification

  • Size: 4ft small double
  • Depth: 18cm
  • Construction: gel memory foam

Compare with our double and small double mattresses, or browse every memory foam mattress we list.

Frequently asked questions

Is a 4ft small double wide enough for two adults?

It can work for occasional use, but at roughly 120cm most couples will be more comfortable on a 4ft6 double or larger.

What does gel memory foam do?

Gel is added to the foam to help spread heat and give a cooler-feeling surface than standard foam.

Will it fit my existing bed frame?

It fits frames made for 4ft small double mattresses. Measure the internal frame width and length before ordering.

How deep is it?

The mattress is 18cm deep, a mid-depth profile suited to most frames.

How should I look after it?

Keep it on a ventilated base, rotate it head to foot every few months and use a breathable protector.

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Frequently Asked Questions

Will this 18cm gel memory foam mattress fit my 4ft small double bed frame?
It is made for a 4ft small double frame, a standard UK size of 120 x 190cm. Measure the inside of your frame before ordering to confirm the fit. A small double is a good choice for a snug bedroom or a solo sleeper who likes extra room.
Who is a small double gel memory foam mattress best suited to?
A 4ft small double suits one person who wants more space than a single, a guest room, or a compact main bedroom. Couples who are happy to share a narrower bed can use it too. Choose it if you enjoy a cushioned, contouring feel underneath you.
What does gel memory foam do differently from standard foam?
Gel memory foam has gel blended into the foam, which is designed to help the surface feel fresher than standard foam. It still moulds to your shape and spreads your weight for a comfortable, supported feel. It is a comfort feature, so judge it alongside firmness and depth.
How firm does a gel memory foam mattress feel?
A memory foam mattress usually feels softer and more contouring than a sprung one, and the gel layer keeps that cushioned character. Expect a moulding feel rather than a hard surface. If you want a firmer feel, our medium firm or orthopaedic styles may suit you better.
Does a cooling gel foam mattress still get warm at night?
Gel is designed to help the foam feel cooler, but memory foam can still hold some body heat compared with a sprung mattress. A well-aired room and light, breathable bedding help. If you sleep very hot, keep your expectations realistic.
Is 18cm deep enough for a comfortable foam mattress?
At 18cm deep, this foam mattress gives a generous comfort layer for everyday use in a main or spare bedroom. It is slimmer than very deep mattresses, so it sits neatly on most frames without rising too high above the headboard.
What bedding fits a 4ft small double memory foam mattress?
Look for bedding labelled small double or 4ft, as these match the 120cm width. Standard double fitted sheets are often too loose on a narrower bed. Check the sheet depth on the label so it comfortably wraps an 18cm mattress.
How does delivery work and how long does the mattress take to expand?
Foam mattresses are usually compressed and rolled for delivery, so it arrives in a box that is easy to carry upstairs. Unwrap it in the room where it will be used and give it at least 24 hours to expand fully. Air the room to clear any slight smell.
How often should I rotate and clean my foam mattress?
Turn it head to foot every few months so wear stays even. Foam mattresses of this style generally are not flipped. Keep the base ventilated and spot clean marks gently with a slightly damp cloth, avoiding soaking the foam.
Should I pick memory foam or pocket sprung for a small double bed?
Pocket sprung mattresses feel bouncier and more airy, while a memory foam mattress hugs the body and absorbs movement. Hybrid models combine both. If you like a sink-in, cushioned feel, a gel memory foam mattress is a sensible place to start.