Flaxby Natural Silkstone Lambswool Dual Season Mattress

Assessed from the specification published by dreams.co.uk, captured November 2026, and from regular price comparison across our UK retail partners.

The main draw is the dual-sided design. One side is meant for summer and the other for winter, so you can adapt the mattress to the season instead of changing your bedding all year. It's made without glue, chemicals or foam, using natural fibres including British wool, which suits anyone who wants to avoid synthetic fillings. The removable cashmere pillow top adds a softer layer to the surface, and it can come off if you'd rather not have it. It's also recyclable at the end of its life. At 39cm deep, it's a substantial mattress, so check your frame and bedding first.

Eco-conscious buyers
Made without foam, glue or chemicals, using natural fibres including British wool, and recyclable at the end of its life, so it suits anyone avoiding synthetic materials.

Warm sleepers
The flippable design gives you a summer side to use in warmer months, so the mattress itself can adapt to the heat.

Allergy sufferers
Natural fillings of lambswool, cashmere, cotton and silk with no foam or glue suit anyone who wants to avoid synthetic materials in their bed.

Couples
Seven sizes up to UK super king and UK emperor give two people plenty of room, with a summer and winter side to flip between.

If you want to know the firmness before you buy, this might not be the best choice, because Flaxby doesn't publish a rating. It's also pocket-sprung with no foam, so you won't get the slow, hugging feel of memory foam. It's a premium purchase too, which may be more than you want to spend. At 39cm deep, it needs a frame and bedding that can cope.

How firm is the Flaxby Natural Silkstone Lambswool Dual Season?

Flaxby doesn't publish a firmness rating for this mattress. The removable cashmere pillow top will add some softness to the surface, but if firmness matters to you, ask the retailer before ordering.

What sizes does the Flaxby Natural Silkstone Lambswool Dual Season come in?

It comes in a UK small single, UK single, UK small double, UK double, UK king, UK super king and UK emperor. Check your bed frame size carefully before you order, as the depth may also affect fit.

How deep is the Flaxby Natural Silkstone Lambswool Dual Season?

It's 39cm deep. That's a tall mattress, so check that your bed frame and bedding suit it, particularly if you have a low frame or a headboard that sits close to the mattress.

Is the Flaxby Natural Silkstone Lambswool Dual Season made with foam?

No. It's pocket-sprung and made without glue, chemicals or foam. The materials are lambswool, cashmere, cotton, silk and a blend of 10 natural fibres, so it suits you if you want to avoid foam.

Does the Flaxby Natural Silkstone Lambswool Dual Season come with a trial?

Dreams offers a 100-night comfort trial on it. That's Dreams' own offer rather than Flaxby's, so check the full conditions with Dreams before you order.