Relyon Ultra Cool Gel 2400 Small Double Mattress
Relyon

Relyon Ultra Cool Gel 2400 Small Double Mattress

The Relyon Ultra Cool Gel 2400 is a hybrid mattress, which means it combines springs with comfort layers rather than relying on foam alone.

  • Suits sleepers who run warm
  • Medium-firm feel, easy to move on
  • From a long-established British maker

£1,163.65

Size: Small Double. Available at Mattress Man

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Where can I buy the Relyon Ultra Cool Gel 2400 Small Double Mattress?

Below are the best prices for the Relyon Ultra Cool Gel 2400 Mattress in a Small Double. Available from (9) trusted retailers.

Relyon Ultra Cool Gel 2400 Mattress

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Prices last checked:
11th November 2026

Mattress dimensions for the Relyon Ultra Cool Gel 2400 Small Double Mattress

Length: 190cm

Width: 120cm

(4ft x 6ft 3in)

Minimum room size: 2.4m x 2.8m

Mattress details

Mattress Details for the Relyon Ultra Cool Gel 2400 Small Double Mattress

Mattress

Relyon Ultra Cool Gel 2400 Mattress

Size

UK Small Double (4ft x 6ft 3in)

Firmness

Medium Firm

Construction

  • Pocket Spring

  • Hybrid

  • Gel

Depth (cm)

Layers

Layer Details

Key benefits

Key Benefits of the Relyon Ultra Cool Gel 2400 Small Double Mattress

  • Room to spread out on your own: At 30cm wider than the UK single, the UK small double lets a solo sleeper lie diagonally or turn over on the firmer surface without ending up near the edge.
  • Clears doors in tighter rooms: Being 15cm narrower than the UK double, the UK small double can leave enough space for a door or wardrobe to open in a box room where a UK double would block it.
  • An easy step up from a single: The UK small double is the same 190cm length as the UK single, so a teenager moving up gains width while the bed sits in the room much as before.
  • Manages the odd shared night: In a guest room, two people can share the UK small double for a short stay, although couples sleeping together nightly will want the UK double's 67.5cm each.
  • Simple to kit out: Because 4ft is a standard UK width, frames and fitted sheets for the UK small double are easy to find in ordinary bedding ranges.

Who should buy the Relyon Ultra Cool Gel 2400 Small Double Mattress?

This size suits you if...

You sleep alone and want noticeably more room than a single, your teenager has outgrown a single but the bedroom can't spare much floor, or you're furnishing a guest room where couples stay only now and then.

Consider another size if...

You share the bed with a partner every night. We'd recommend the UK double instead, which gives 67.5cm each and needs a room of at least 2.6m x 2.8m.

FAQ's

Frequently Asked Questions About the UK Small Double

Will a Relyon Ultra Cool Gel 2400 small double fit in a box room?

We suggest at least 2.4m x 2.8m for the UK small double. It is 15cm narrower than the UK double, which can decide whether a door still swings open. In a loft conversion with sloping ceilings, measure the floor where you can actually stand beside the bed, rather than the full floor area.

Is a small double Relyon Ultra Cool Gel 2400 big enough for a teenager?

For most teenagers leaving a single, yes. The UK small double is 30cm wider than the UK single and the same length, so the room layout barely changes. The medium firm feel suits back and combination sleepers, although a lighter teenager who sleeps on their side may find it slightly firm at the shoulder.

Relyon Ultra Cool Gel 2400 small double or double for a guest room?

If couples stay only occasionally, the UK small double copes and keeps the room 15cm roomier across the bed. If guests share most weekends, the UK double gives 67.5cm each, and we suggest at least 2.6m x 2.8m for it.

What size is the Relyon Ultra Cool Gel 2400 small double in feet?

The UK small double is 4ft x 6ft 3in, which is 120 x 190cm. It shares its length with the UK double, so the difference between them is width alone: the UK small double is 15cm narrower.

Should I size up from a small double to a king in the Relyon Ultra Cool Gel 2400?

The UK king is 30cm wider and 10cm longer than the UK small double, giving 75cm each for two sharing. It needs at least 2.7m x 2.9m by our guidance. Sizing up makes sense if you share nightly and have the floor; a solo sleeper in a compact room is usually better served by the UK small double.