Rank #7 in Best King Size Mattress 2026: 10 Ranked, Four Spec Sheets That Contradict Themselves
Deegari 10-Inch Hybrid King Mattress in a Box, 800 Coils
Price and rating as shown on Amazon when we collected them. Both change.
The Deegari 10 Inch King Size Mattress in a Box is a hybrid: high-density memory foam over individually pocketed springs, sold in one king size at £157.99 and rated 4.5 out of 5 from 75 ratings. It takes seventh place in this guide.
The notable thing about this fiche is that its dimensions hold together. The Size field says King 150cm, Item Dimensions says 200 x 150 x 25 centimetres, and the L x W x Thickness field says 2L x 1.5W x 0.25Th metres. That is 150 cm wide, 200 cm long and 25 cm deep three times over, which is not something every listing in this guide manages. Two numbers sit slightly apart: the product name and the Item Thickness field say 10 inches, which is 25.4 cm, while the depth fields round it to 25 cm. And the score breakdown supplied with the listing adds up to 100 across its five bars, although the listing states 75 ratings.
Everything below is taken from the Deegari Amazon listing and its customer reviews; we have not tested this mattress ourselves.
How those 75 ratings break down
An average hides its own shape. This is the spread behind the 4.5 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Price | £157.99 |
|---|---|
| Rating | 4.5 out of 5 from 75 ratings |
| Size as listed | King 150cm |
| Item dimensions | 200 x 150 x 25 centimetres (the L x W x Thickness field gives 2L x 1.5W x 0.25Th metres) |
| Thickness | 10 inches in the name and the Item Thickness field, 25 centimetres in the depth fields (as listed) |
| Coils | Pocketed coil, 800 in total (as listed) |
| Number of layers | 2, on a hybrid of memory foam and pocketed coils (as listed) |
| Maximum weight capacity | 300 kilograms (as listed) |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“I've bought a few boxed mattresses and not all of them have been great, but this one has a lovely thick layer of foam and the springs are at the bottom. I'm really impressed with it for the price. It's definitely medium firm as well.”
Verified purchase“So comfortable!! Really thick and bouncy and soft! Came next day delivery and is so amazing!”
What it is up against
The rivals it was ranked against in Best King Size Mattress 2026: 10 Ranked, Four Spec Sheets That Contradict Themselves.
Questions people ask
What size is the Deegari RST-UK-S mattress?
The listing gives Size as King 150cm and Item Dimensions as 200 x 150 x 25 centimetres, so the king size it names is 150 cm wide, 200 cm long and 25 cm deep.
How thick is the Deegari mattress?
The product name and the Item Thickness field say 10 inches; the Item Depth and Item Dimensions fields say 25 centimetres, which is 10 inches rounded down.
How many springs does the Deegari RST-UK-S use?
The Number of Mattress Coils field reads 800, and the Mattress Coil Type is given as pocketed coil.
How firm is the Deegari 10 inch mattress?
Medium firm, according to the Item Firmness Description field.
How long does the Deegari mattress take to expand?
The listing asks for 48-72 hours after opening the box for the mattress to fully decompress and dissipate.
What weight will the Deegari RST-UK-S hold?
The Weight Capacity Maximum field gives 300 kilograms.
Comments
Reader comments are not checked against the manufacturer's claims above.
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