Harrison Spinks Heaven 21500 Medium Single Mattress
Harrison Spinks

Harrison Spinks Heaven 21500 Medium Single Mattress

The Harrison Spinks Heaven 21500 is a pocket spring mattress in a medium firmness, available in UK Single, Double, King and Super King, plus an EU Single.

  • Minimises partner disturbance
  • Medium feel for side & back sleepers
  • From a long-established British maker

£1,486.65

Size: Single. Available at Mattress Man

Best priced retailer
Get the lowest price we've found
Buy at Mattress Man
We may earn a commission.

Save with the previous model

Some retailers still sell the earlier version of this mattress. These is where it costs less than the current model's best price.

Where can I buy the Harrison Spinks Heaven 21500 Medium Single Mattress?

Below are the best prices for the Harrison Spinks Heaven 21500 Medium Mattress in a Single. Available from (9) trusted retailers.

Harrison Spinks Heaven 21500 Medium Mattress

Cheapest
Retailer
Was price
£1999.00
Save £250
Get deal
Prices last checked:
15th October 2026

Mattress dimensions for the Harrison Spinks Heaven 21500 Medium Single Mattress

Length: 190cm

Width: 90cm

(3ft x 6ft 3in)

Minimum room size: 2.1m x 2.8m

Mattress details

Mattress Details for the Harrison Spinks Heaven 21500 Medium Single Mattress

Mattress

Harrison Spinks Heaven 21500 Medium Mattress

Size

UK Single (3ft x 6ft 3in)

Firmness

Medium

Construction

  • Pocket Spring

Depth (cm)

Layers

Layer Details

Key benefits

Key Benefits of the Harrison Spinks Heaven 21500 Medium Single Mattress

  • Fits compact rooms: At 90cm wide it leaves usable floor space in box rooms and loft conversions where the bed has to share the room with a desk or wardrobe.
  • A single built to last: Most singles are budget buys for children's rooms; this one is a premium pocket spring mattress, which suits a teenager who will keep it for years.
  • Medium tension for growing sleepers: The medium feel is forgiving at the shoulder for side sleepers, a sensible choice for a teen or adult whose sleeping position varies.
  • Guest rooms that impress: In a spare room that doubles as an office, one quality UK single gives occasional guests a genuinely comfortable night without dominating the floor.
  • Cheap, easy bedding: Standard single sheets and a 135 x 200cm single duvet fit, and both are the most widely stocked and affordable bedding of any UK size.

Who should buy the Harrison Spinks Heaven 21500 Medium Single Mattress?

This size suits you if...

You're a solo adult sleeper in a compact room, a loft conversion or a first flat and you want a mattress at the quality end rather than a disposable one. It also suits an older child or teenager whose bedroom has to fit a desk and wardrobe alongside the bed, and you'd rather buy once properly than replace a cheaper single in a few years.

Consider another size if...

You're an adult who shares the bed, or you simply feel cramped at 3ft wide. We'd recommend the UK double instead: it's 45cm wider than the UK single and the same length, and we suggest at least 2.6m x 2.8m of room space for it.

FAQ's

Frequently Asked Questions About the UK Single

Is the Heaven 21500 in a UK single a good choice for a child's room?

It fits the room, at 90 x 190cm the UK single is the standard children's bed size, but it's a premium mattress, so it makes more sense for an older child or teenager who will use it for years than for a young child likely to outgrow their setup quickly.

Will the UK single Heaven 21500 fit a bunk or mid sleeper frame?

The 90 x 190cm footprint matches standard UK bunk and mid sleeper frames. Raised frames often have depth limits for safety rails, though, and this is a substantial pocket spring mattress, so check your frame's maximum mattress depth against the manufacturer's listing before buying.

How much space does a UK single need in a spare room?

We suggest allowing at least 2.1m x 2.8m of floor space. That leaves room for the mattress plus space to walk and make the bed, which matters in a spare room doubling as an office where a desk is competing for the same floor.

Is a UK single big enough for an adult on this mattress?

For one adult sleeping alone, yes: 90cm of width is the UK standard for solo sleepers, and the medium pocket spring feel supports back and side sleeping. If you're broad-shouldered or move around a lot at night, the UK small double is 30cm wider and the same length, and worth considering.

Where can I compare prices for the Heaven 21500 single?

Prices for this size change regularly, so we don't quote a figure here. Compare the retailers listed on this page instead: the prices shown are updated as retailers change them, and it's worth checking each retailer's own delivery and trial terms too, as they differ.