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Hypnos Iona Double Mattress
Hypnos

Hypnos Iona Double Mattress

The Hypnos Iona Mattress pairs ReActivePro 7-turn pocket springs with two rows of hand-sewn side-stitching, which means support that carries right to the edge of the bed.

  • Edge-to-edge border support
  • Certified organic natural materials
  • Hand-tufted & handcrafted build
£3,499

£3,149

Save £350

Size: Double. Available at Feather & Black

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Where can I buy the Hypnos Iona Double Mattress?

Below are the best prices for the Hypnos Iona Mattress in a Double. Available from (9) trusted retailers.

Hypnos Iona Mattress

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Prices last checked:
13th November 2026

Mattress dimensions for the Hypnos Iona Double Mattress

Length: 190cm

Width: 135cm

(4ft 6in x 6ft 3in)

Minimum room size: 2.6m x 2.8m

Mattress details

Mattress Details for the Hypnos Iona Double Mattress

Mattress

Hypnos Iona Mattress

Size

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

Firmness

Construction

  • Eco-Friendly

  • Latex

  • Natural

  • Pocket Spring

  • Wool

Depth (cm)

27

Layers

Layer Details

Key benefits

Key Benefits of the Hypnos Iona Double Mattress

  • More of the width is usable: Two rows of hand-sewn side-stitching support the border, which means whoever sleeps on the outside of a UK double can lie near the edge without feeling they're slipping off.
  • Leaves space for the rest of the room: At our suggested minimum of 2.6m x 2.8m, many second bedrooms and first flats can still fit a wardrobe and a chest of drawers beside the bed.
  • Room for bedside tables: Around 3m x 3m is the comfortable norm, and at that size you can usually keep a bedside table on each side without edging sideways past the bed.
  • Bedding is easy to find: Double sheets are sold almost everywhere and a 200 x 200cm double duvet fits, which helps a little when the Iona has taken a large share of the budget.
  • A considered choice for guests: If visiting couples use your spare room, a UK double gives them shared space on organic, natural fillings without the bed swallowing a modest room.

Who should buy the Hypnos Iona Double Mattress?

This size suits you if...

You share the bed with a partner most nights and your bedroom sits around our suggested minimum of 2.6m x 2.8m, or you're furnishing a spare room for visiting couples and want natural, Soil Association certified materials in a bed that leaves floor space free.

Consider another size if...

One of you sprawls, or you're both tall and broad-shouldered. We'd recommend the UK king instead: it's 15cm wider and 10cm longer, and we suggest at least 2.7m x 2.9m for it.

FAQ's

Frequently Asked Questions About the UK Double

Is a Hypnos Iona double big enough for two people?

For most couples, yes. A UK double gives each of you 67.5cm, and the Iona's side-stitched border means the outer edge stays supportive, so you can use nearly all of it. If either of you moves a lot in the night, the UK king gives 75cm each, which is 7.5cm more per person.

What size bedroom do I need for a Hypnos Iona double?

We suggest at least 2.6m x 2.8m. That fits the bed with a little room to walk round it. If you want bedside tables on both sides plus a wardrobe, around 3m x 3m feels far less cramped. Measure your floor space first, then compare the retailers listed on this page.

Hypnos Iona double or king: which should a couple choose?

The UK double suits couples in typical bedrooms who sleep fairly still. The UK king is 15cm wider and 10cm longer, giving 75cm each, but we suggest at least 2.7m x 2.9m for it. If your room is under that, the UK double is the more comfortable fit for the space.

Is the Hypnos Iona in a UK double long enough for tall sleepers?

The UK double is 190cm long, or 6ft 3in. That's fine for most adults, but if either of you is tall enough for your feet to reach the end, the UK king is 10cm longer. The UK small double and UK single are the same length as the UK double, so they won't help.

Should I get the Hypnos Iona double or small double for a small room?

The UK small double is 15cm narrower and the same length, and we suggest at least 2.4m x 2.8m for it. It works for one person, or a solo sleeper whose dog or cat claims a corner. For two adults sharing every night, the extra width of the UK double makes a real difference.