Rest Assured Harris Ortho Pocket 1400 Single Mattress
Rest Assured

Rest Assured Harris Ortho Pocket 1400 Single Mattress

The Rest Assured Harris Ortho Pocket 1400 Mattress combines pocket springs with wool, cotton, cashmere and silk fillings, which means you get firm, supportive sleep with a natural, breathable feel.

  • Firm support for back sleepers
  • Natural wool & cotton fillings
  • Wire edge border keeps its shape

£818.99

Size: Single. Available at Archers Sleepcentre

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Where can I buy the Rest Assured Harris Ortho Pocket 1400 Single Mattress?

Below are the best prices for the Rest Assured Harris Ortho Pocket 1400 Mattress in a Single. Available from (9) trusted retailers.

Rest Assured Harris Ortho Pocket 1400 Mattress

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Prices last checked:
1st November 2026

Mattress dimensions for the Rest Assured Harris Ortho Pocket 1400 Single Mattress

Length: 190cm

Width: 90cm

(3ft x 6ft 3in)

Minimum room size: 2.1m x 2.8m

Mattress details

Mattress Details for the Rest Assured Harris Ortho Pocket 1400 Single Mattress

Mattress

Rest Assured Harris Ortho Pocket 1400 Mattress

Size

UK Single (3ft x 6ft 3in)

Firmness

Firm

Construction

  • Natural

  • Orthopaedic

  • Pocket Spring

  • Wool

Depth (cm)

27

Layers

Layer Details

Key benefits

Key Benefits of the Rest Assured Harris Ortho Pocket 1400 Single Mattress

  • Leaves room for everything else: At 3ft x 6ft 3in it leaves floor space for a desk, toy storage or a wardrobe, and we suggest a room of at least 2.1m x 2.8m.
  • Flat support for one: The firm rating gives a level surface that suits teenagers and adults who sleep mostly on their back, although lighter side sleepers may find it a little unforgiving.
  • Edges you can sit on: On a narrow mattress you use more of the edge, and the wire edge border helps the sides keep their shape when you perch there to get dressed.
  • Simpler to rotate on your own: It is single sided with turning handles on the border, and turning it head to toe is a more manageable solo job in a UK single than in the larger sizes.
  • Pairs well in a guest room: Two UK singles side by side let a spare room host two friends or visiting siblings, each on their own firm surface, without anyone sharing a bed.

Who should buy the Rest Assured Harris Ortho Pocket 1400 Single Mattress?

This size suits you if...

You sleep alone and prefer a firm, flat surface, you're kitting out a child's or teenager's room where a desk and storage need their share of the floor, or you want two separate beds in a guest room rather than one shared one.

Consider another size if...

You share the bed with a partner, or you're an adult who spreads out and finds 90cm cramped. We'd recommend the UK small double instead; we suggest at least 2.4m x 2.8m for it.

FAQ's

Frequently Asked Questions About the UK Single

Will the Harris Ortho Pocket 1400 single fit a bunk bed or mid sleeper?

Possibly, but check first. The UK single is 90 x 190cm, the standard size for these frames, and it is 27cm deep. Raised frames usually state a maximum mattress depth so the guard rail stays high enough above the sleeping surface. If your frame's limit is lower than 27cm, choose a different mattress for that bed.

What size bedding do I need for a UK single Harris Ortho Pocket 1400?

Standard UK single bedding fits the 90 x 190cm surface, and a single duvet of 135 x 200cm covers it comfortably. Because the mattress is 27cm deep, look for fitted sheets labelled deep or extra deep so the corners tuck fully underneath and stay put through the night.

How big does a bedroom need to be for a single Harris Ortho Pocket 1400?

We suggest allowing at least 2.1m x 2.8m of floor space for a UK single. That gives room to walk round the bed and open a wardrobe or drawers, which matters in a child's room or a box room that also serves as a study.

Should one adult choose a single or small double Harris Ortho Pocket 1400?

If your room is tight, the UK single works well for a solo adult who sleeps fairly still. If you tend to stretch out, the UK single is 30cm narrower than the UK small double, while both are the same length. We suggest at least 2.4m x 2.8m for the UK small double.

Is a firm Rest Assured single a good choice for a teenager's room?

It suits teenagers who sleep mostly on their back and like a flat, supportive feel. Lighter teens who sleep on their side may find the firm surface a little hard around the shoulders and hips. In a compact teenage bedroom, the 90 x 190cm footprint leaves space for a desk alongside the bed.