Sleepeezee Zenith 4500 Combination Single Mattress
The Sleepeezee Zenith 4500 Combination Mattress combines a plush pillow top with micro springs and a double layer of graphite memory foam, which means a softer-feeling surface that helps draw heat away as you sleep.
- Plush pillow top feels cushioned
- Graphite foam draws heat away
- Support that runs edge to edge
£1,099
Get the lowest price we've found
Save with the previous model
Some retailers still sell the earlier version of this mattress for less than the current model's best price.
Sleepeezee Zenith 4500 Combination Mattress
More available sizes
Mattress details
Mattress
Sleepeezee Zenith 4500 Combination Mattress
Size
Firmness
Medium
Construction
Memory Foam
Pocket Spring
Depth (cm)
35
Layers
4
Layer Details
Breeze 3D knit cover
A knitted cover that's up to 40% more breathable than standard fabrics, which means air moves more freely at the surface.
Plush pillow top with micro springs
A plush pillow-top layer with micro springs that adds a softer surface. It gives the mattress a cushioned feel on top of its medium rating.
Double graphite memory foam
Two layers of graphite-infused memory foam that help draw heat away from the body, so you get foam comfort with less heat build-up.
Pocket spring unit
Individually wrapped pocket springs giving responsive support and edge-to-edge support, so the whole surface feels usable.
Layer details from crushedvelvetbedstore.co.uk product page, November 2026.
Key benefits
- Leaves room for everything else: At 3ft x 6ft 3in, the UK single leaves space for a desk, wardrobe or toy storage in a child's bedroom.
- A pair suits a shared or guest room: Two UK singles let siblings or visiting friends sleep separately, each with their own pillow top and pocket springs.
- Support right to the side: The pocket springs support edge to edge, which helps on a 90cm bed where a solo sleeper often ends up close to the side.
- Heat moves away from you: Graphite memory foam and the Breeze cover help draw heat away, which is welcome in a small room or a loft conversion that holds warmth.
- A cushioned top for side sleepers: The pillow top softens the surface over a medium rating, which may suit a side-sleeping teenager better than a flat, firm feel.
This size suits you if...
You sleep alone and want a cushioned surface, or you're furnishing a teenager's room, a guest room with two beds, or a study that doubles as spare space. Your frame also needs to take a mattress 35cm deep.
Consider another size if...
You share the bed, or you like room to spread out when sleeping alone. We'd recommend the UK small double instead: it is 30cm wider at the same length, and we suggest at least 2.4m x 2.8m for it.
Similar Mattresses in This Price Range
Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
FAQ's
Will the Sleepeezee Zenith 4500 UK single fit a bunk bed or mid sleeper?
Check carefully before buying. The mattress is 35cm deep, and raised frames such as bunks, cabin beds and mid sleepers usually set a maximum mattress depth so the guard rail stays effective. Look up the frame maker's guidance first. If the limit is below 35cm, this mattress is not a safe fit for that frame.
Is a UK single Sleepeezee Zenith 4500 big enough for an adult?
For one adult, usually yes. It measures 90 x 190cm (3ft x 6ft 3in), the standard one-person UK size. If you're tall, the UK king is 10cm longer. It is also 60cm wider, though, and we suggest at least 2.7m x 2.9m of floor space for the UK king.
What size room do I need for a UK single Zenith 4500?
We suggest at least 2.1m x 2.8m of floor space, which leaves room for a desk or chest of drawers alongside. If two UK singles are going side by side for siblings or guests, measure for both beds plus a walkway between them before you order.
What bedding fits the Sleepeezee Zenith 4500 single?
A single duvet (135 x 200cm) fits, and single fitted sheets match the 90 x 190cm footprint. Because the mattress is 35cm deep, check the pocket depth on any fitted sheet before buying, as a shallow one may not tuck under properly.
Is the Zenith 4500 in a UK single a good choice for a guest room?
It can be, particularly as a pair of UK singles so two guests sleep separately. The medium rating and pillow top should suit most back and side sleepers, although guests who prefer a very firm surface may find it too cushioned. For visiting couples, the UK double gives 67.5cm each.