Hypnos Legacy 3 Medium Double Mattress
Hypnos

Hypnos Legacy 3 Medium Double Mattress

The Hypnos Legacy 3 Medium is a pocket spring mattress with a medium feel, which means the springs move independently to follow the shape of your body rather than pushing back as one unit.

  • Medium feel suits most sleepers
  • Minimises partner disturbance
  • From a long-established British maker

£1,969.45

Size: Double. Available at Mattress Man

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Where can I buy the Hypnos Legacy 3 Medium Double Mattress?

Below are the best prices for the Hypnos Legacy 3 Medium Mattress in a Double. Available from (9) trusted retailers.

Hypnos Legacy 3 Medium Mattress

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Prices last checked:
11th November 2026

Mattress dimensions for the Hypnos Legacy 3 Medium 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 Legacy 3 Medium Double Mattress

Mattress

Hypnos Legacy 3 Medium Mattress

Size

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

Firmness

Medium

Construction

  • Pocket Spring

Depth (cm)

Layers

Layer Details

Key benefits

Key Benefits of the Hypnos Legacy 3 Medium Double Mattress

  • The classic shared size: At 135 x 190cm, the UK double is the long-standing choice for two, giving 67.5cm each for two people sharing.
  • Fits a typical UK bedroom: We suggest allowing at least 2.6m x 2.8m, which most British master bedrooms manage with room left for bedside tables on both sides.
  • Pocket springs help sharers: The springs move independently, which means a partner turning over on their 67.5cm side is less likely to disturb yours.
  • Medium feel for two different sleepers: A medium tension is a sensible compromise when a couple can't agree, though lightweight side sleepers may find it slightly firm.
  • Bedding is cheap and everywhere: Double sheets and a 200 x 200cm duvet are stocked at every price point, so dressing this size costs less than dressing a UK king.

Who should buy the Hypnos Legacy 3 Medium Double Mattress?

This size suits you if...

You share the bed every night and your bedroom is an ordinary UK size, where a bigger mattress would crowd the wardrobe and leave no space to walk around. Or you sleep alone, perhaps with a dog or cat that claims a corner, and want space to spread out without giving the bed the whole room.

Consider another size if...

You both want more personal space and your room measures at least 2.7m x 2.9m. We'd recommend the UK king instead: it's 15cm wider and 10cm longer than the UK double.

FAQ's

Frequently Asked Questions About the UK Double

Is the Hypnos Legacy 3 in a UK double big enough for a couple?

Yes, for most couples. The UK double measures 135 x 190cm, which gives 67.5cm each for two people sharing. The pocket spring construction helps here, as the springs move independently and reduce how much you feel a partner's movement. If either of you is tall or a restless sleeper, the UK king offers noticeably more room.

What room size do I need for the Hypnos Legacy 3 UK double?

We suggest allowing at least 2.6m x 2.8m, with around 3m x 3m the comfortable norm. That leaves space to walk around the bed and fit bedside tables on both sides. This is our own guidance rather than the manufacturer's, so measure your room, including alcoves and door swings, before ordering.

How much bigger is the UK king than the UK double for this mattress?

The UK double is 15cm narrower and 10cm shorter than the UK king. That extra width is felt most by couples, while the extra length matters if either of you is over six feet tall. For the UK king we suggest a room of at least 2.7m x 2.9m, against 2.6m x 2.8m for the UK double.

Will a UK double Hypnos Legacy 3 get up narrow stairs?

It needs planning. This is a traditional pocket spring mattress, so it arrives full size rather than rolled in a box, and at 135 x 190cm it's an awkward carry on the turning stairs of older terraces or a tight new build landing. Measure your stairwell and any tight corners, and ask the retailer about access before you order.

Where can I compare prices for the Hypnos Legacy 3 UK double?

Right here. The prices shown on this page are updated as retailers change them, so compare the retailers listed rather than relying on a figure you saw elsewhere. Hypnos sits at the premium end of the market, so it's a size where checking the live table before buying can make a real difference.