Buying guide

Best king size mattresses to compare

A practical king size mattress shortlist from Mattress Online, comparing pocket sprung, hybrid and foam-led options by price, feel and fit rather than naming one universal winner.

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Last verified: 2026-11-02

Quick verdict

This is a comparison shortlist, not a single-winner verdict. The set spans a £205-£657 starting-price range, so there is real room to compare value as well as comfort. Aspire Pocket+ 1000 Tufted Mattress is the entry-priced option, while Bodyshape and Emma give you higher-priced alternatives to weigh up. Because the listed prices are starting prices, and size-specific pricing can vary, check the king-size price on each live product page before you decide.

Top picks to compare

Start with Aspire Pocket+ 1000 Tufted Mattress (£205-£305), Bodyshape Boost 1000 Pocket Memory Mattress (£299-£589), Bodyshape Gel 2000 Pocket Hybrid Mattress (£284-£544) because they give you a focused set of current retailer options to compare. The visible price range is £205-£657, so check whether the extra spend buys a useful specification difference rather than only a different brand or finish. The shortlist includes Aspire, Bodyshape, Emma, which helps you compare familiar brands against specification, delivery and value.

Available Aspire Pocket+ 1000 Tufted Mattress

Aspire · Pocket Sprung

Aspire Pocket+ 1000 Tufted Mattress

from £205-£305.

£205-£305

Sizes tracked: Small Single, Single, Small Double, Double, King Size

Available Bodyshape Boost 1000 Pocket Memory Mattress

Bodyshape · Pocket Sprung

Bodyshape Boost 1000 Pocket Memory Mattress

from £299-£589.

£299-£589

Sizes tracked: Single, Small Double, Double, King Size, Super King

Available Bodyshape Gel 2000 Pocket Hybrid Mattress

Bodyshape · Hybrid

Bodyshape Gel 2000 Pocket Hybrid Mattress

from £284-£544.

£284-£544

Sizes tracked: Single, Small Double, Double, King Size, Super King

Available Bodyshape Ultra Ortho 1500 Pocket Mattress

Bodyshape · Pocket Sprung · Firm

Bodyshape Ultra Ortho 1500 Pocket Mattress

from £328-£577.

£328-£577

Sizes tracked: Single, Small Double, Double, King Size, Super King

Available Emma Original Pro Mattress

Emma · Mattress

Emma Original Pro Mattress

from £357-£657.

£357-£657

Sizes tracked: Single, Small Double, Double, King Size, Super King

At-a-glance comparison

Use this table to scan the shortlist quickly before opening individual product pages. It covers Pocket Sprung, Hybrid, Mattress, so compare like-for-like where possible before deciding which mattress best fits your usual sleep position, preferred firmness and bed-frame size. Firmness differences include Firm; Firmness differences can matter as much as headline price when you are matching a product to a specific need.

ProductTypeFirmnessSizesFrom
Aspire Pocket+ 1000 Tufted MattressPocket SprungCheck retailerSmall Single, Single, Small Double, Double, King Size£205
Bodyshape Boost 1000 Pocket Memory MattressPocket SprungCheck retailerSingle, Small Double, Double, King Size, Super King£299
Bodyshape Gel 2000 Pocket Hybrid MattressHybridCheck retailerSingle, Small Double, Double, King Size, Super King£284
Bodyshape Ultra Ortho 1500 Pocket MattressPocket SprungFirmSingle, Small Double, Double, King Size, Super King£328
Emma Original Pro MattressMattressCheck retailerSingle, Small Double, Double, King Size, Super King£357

What the retailer pages show

Mattress Online says it has operated since 2003 and shows an Excellent Trustpilot rating with over 72,000 reviews, which gives the retailer a strong reputation signal even though individual product samples are small. The visible review counts on this shortlist are limited: Aspire shows 9 reviews, Bodyshape Boost 1 review and Bodyshape Gel 2000 3 reviews. That means the individual product ratings are better treated as signals than as proof of broad popularity. The retailer also highlights free delivery to most locations and an old mattress removal service, so practical buying extras are part of the comparison too.

Main trade-offs to weigh

The biggest trade-off here is between feel, support and price. Aspire Pocket+ 1000 Tufted Mattress is a medium pocket sprung option with soft white fibres, so it looks like a straightforward entry choice. Bodyshape Boost 1000 Pocket Memory Mattress keeps the pocket spring base but adds a memory foam comfort layer, which is the clearest route to a plusher-feeling option in this set. Bodyshape Gel 2000 Pocket Hybrid Mattress mixes pocket springs with gel foam, and Mattress Online describes the gel foam as cooler-feeling than traditional memory foam, although that is a retailer claim rather than measured proof. Bodyshape Ultra Ortho 1500 Pocket Mattress is the firm option in the wider comparison set, while Emma Original Pro Mattress is the deeper, more premium-priced alternative to check if you want a different construction and a longer guarantee.

Why these five made the shortlist

The shortlist groups 5 mattresses from 3 brands: Aspire, Bodyshape and Emma. That mix is useful because it lets you compare entry-price, memory-foam-led, gel-hybrid, firm-support and deeper premium options in one place. Instead of treating brand name as the main sorting tool, the page focuses on how the mattresses differ by construction, firmness and practical fit. It is a commercial shortlist for narrowing the field, not a claim that these are the only king size mattresses worth considering.

At-a-glance benchmark

The current starting-price spread runs from £205 to £657, which makes this a useful comparison set for both budget-led and premium-led shoppers. The shortlist includes Pocket Sprung, Hybrid and a general Mattress listing, so it is worth comparing like-for-like feel as well as headline price. Medium firmness appears across several models, while the firm example in the wider set gives a clearer contrast for shoppers who want a stronger support feel. Review visibility is limited across the set, so the benchmark is most useful for construction and price comparison rather than independent performance proof.

How to choose between these options

Choose Aspire Pocket+ 1000 Tufted Mattress if you want the lowest starting point and a medium-feel pocket sprung mattress from £205-£305. Choose Bodyshape Boost 1000 Pocket Memory Mattress if you want pocket springs with a memory foam comfort layer and a slightly more cushioning feel. Choose Bodyshape Gel 2000 Pocket Hybrid Mattress if you want a hybrid build and are comparing a gel foam comfort layer against memory foam. Choose Bodyshape Ultra Ortho 1500 Pocket Mattress if you want the firmest support profile in the wider set, subject to checking the full product page. Choose Emma Original Pro Mattress if you want the deeper, single-sided premium option and are prepared to pay more for that build and its 10-year guarantee.

Where the value sits

Value depends on what the extra spend changes in practice. Aspire Pocket+ 1000 Tufted Mattress gives you the lowest entry price and a 5-year guarantee, so it is the easiest value benchmark in the set. Bodyshape Boost 1000 Pocket Memory Mattress asks more money for a memory foam layer but only offers a 1-year guarantee, so it is worth checking whether the feel is worth that trade-off. Bodyshape Gel 2000 Pocket Hybrid Mattress and Bodyshape Ultra Ortho 1500 Pocket Mattress both sit higher up the range and may justify that if you want a hybrid feel or firmer support. Emma Original Pro Mattress is the most expensive comparison point, so its deeper single-sided build and longer guarantee are the main reasons to consider the extra spend. As always, confirm the latest king-size price, delivery terms and stock on the retailer page before buying.

Retailer details used

Last checked 2026-11-02. The source list below is included to help you check the details behind the comparison. Always confirm the latest price, delivery cost, stock status and product details with the retailer before buying.

Buying questions

Is the cheapest mattress the best value?

Not automatically. Aspire Pocket+ 1000 Tufted Mattress is the cheapest starting point at £205-£305, but value depends on whether its medium pocket sprung feel and 5-year guarantee suit you better than the memory-foam, hybrid or premium alternatives.

How do pocket sprung, hybrid and memory foam-led mattresses feel different?

In this shortlist, pocket sprung models lean more towards spring support, the memory foam option adds a cushier comfort layer, and the hybrid brings springs and gel foam together. That makes Bodyshape Gel 2000 Pocket Hybrid Mattress a useful middle ground if you want support with a foam-led comfort layer.

What should I know about the 100-night comfort trial?

Mattress Online shows a 100-night comfort trial on these product pages, but the retailer’s exchange terms include extra conditions, so it is worth reading the live trial page before you buy. Do not assume it is a simple no-questions-asked return.

Are the review scores strong enough to use as a buying signal?

Only as a light guide. Aspire has 9 visible reviews, Bodyshape Boost has 1 and Bodyshape Gel 2000 has 3, so the samples are too small to make a confident popularity ranking. They can help with reassurance, but they should not override the product specifications.

Is the listed price the same for every king-size variant?

No. The prices shown here are starting prices, and the brief warns that they are not size-specific. Check the exact king-size price on the retailer page before ordering.