1 / 7SZsuilong 634 King Hybrid Mattress, 150 x 200 cm
The SZsuilong 634 king hybrid mattress combines memory foam with pocket springs and is listed as medium firm. Its advertised seven-zone design and compressed, roll-up delivery suit buyers seeking zoned support in a mattress-in-a-box format.
At a glance
- Advertised seven-zone independent pocket springs are intended to target support across different areas of the body.
- Memory foam over pocket springs combines contouring with a spring-based support system, according to the listing.
- The manufacturer says the mattress is compressed and vacuum-sealed for delivery, then expands after unboxing.
Reference price: £259.99
Price checked: 12 Nov 2026
View offerAhead of Black FridayExplore the selectionPros and cons
Pros
- The hybrid combination offers both memory foam and pocket springs rather than an all-foam construction.
- The advertised zoned springs and motion-isolation design may suit partners who want movement separation.
- The listing describes a medium-firm feel, a useful starting point for buyers who do not want an explicitly soft or extra-firm mattress.
Technical specifications
10 specifications| Brand | SZsuilong |
|---|---|
| Model | 634 |
| Mattress type | Hybrid |
| Coil type | Pocketed Coil |
| Fill material | Memory Foam |
| Cover material | Polyester Blend |
| Layers | 3 |
| Firmness | Medium Firm |
| Dimensions listed | 200 x 150 x 30 centimetres |
|---|---|
| Weight listed | 22 Kilograms |
What to know before buying
- The seven-zone support, pressure relief, motion isolation, temperature regulation and edge-support benefits are manufacturer claims, not independently established performance.
Listing details to confirm
The listing is inconsistent about thickness and dimensions: it describes the mattress as 12 inches and 30 cm thick, but also lists dimensions as 28L x 150W x 200Th centimetres. Confirm the actual size before purchase, especially if matching a bed frame or bedding.
Who is it for?
A good fit for
- King-size bed owners seeking a memory-foam and pocket-spring hybrid.
- Partners looking for a mattress advertised with independent springs and reduced motion transfer.
- Buyers who prefer a listed medium-firm feel and want compressed delivery.
Less suited to
- Shoppers who need confirmed thickness or exact dimensions before ordering without checking the inconsistent listing details.
- Buyers seeking independently verified performance claims or a different specified firmness.

Customer reviews on Amazon
- 5 stars
75% 75% - 4 stars
10% 10% - 3 stars
2% 2% - 2 stars
3% 3% - 1 star
10% 10%
Customer feedback is strongly positive overall and highlights comfort, firmness, perceived quality, value and sleep quality. That is encouraging for shoppers considering the listed medium-firm hybrid design, but the feedback does not establish that the advertised seven-zone support or motion isolation works for every sleeper. A smaller share of low-star ratings means experiences are not uniformly positive.
Positive themes
- Customer feedback describes the mattress as comfortable and praises its balance of firmness and softness.
- The supplied feedback also reports positive impressions of quality, value and sleep quality.
Frequently asked questions
What size is the SZsuilong 634?
It is listed for a 5FT king at 150 x 200 cm, but the page also gives conflicting thickness and dimension details. Check the selected listing before ordering.
What is the mattress made from?
The listed construction is hybrid, with memory foam fill and pocketed coils. The cover material is described as a polyester blend.
Is it suitable for a couple?
The manufacturer advertises independent pocket springs and reduced motion transfer, which may appeal to couples. Those performance claims are not independently verified here.
How is it delivered?
The listing says it is compressed and vacuum-sealed, then unboxed and unrolled to expand. It does not provide a specific expansion time beyond saying this takes hours.

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