Sealy Imperial Contract Memory Mattress
Mattress
Sealy Imperial Contract Memory Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
31
Layers
3
Layer Details
- MemorySense foam. Sealy's MemorySense foam sits on top and contours to your shape, easing weight off pressure points like hips and shoulders. You feel it as a gentle, relieving cradle rather than a firm surface.
- Reflex Foam. A firm Reflex foam layer follows, contouring to your body while stopping you sinking too deeply. In practice this keeps the memory foam feel shallow and supportive, which makes changing position easier.
- PostureTech Core Support Springs. Sealy's PostureTech springs form the core and become firmer when met with pressure, so support increases exactly where your body pushes hardest. The tops of the springs are made to a softer tension, which means they follow your shape rather than feeling rigid.
Layer details from mattressonline.co.uk product page, September 2026.
- A grown-up mattress in a small footprint: At 90cm wide it leaves room for a desk and wardrobe in a child's or teen's bedroom, while the medium firm feel supports a growing spine.
- Solo sleepers get the whole hybrid: The MemorySense cradle and firming springs work the same in a UK single as in larger sizes, so sleeping alone doesn't mean settling for a simpler build.
- Guest rooms and studies: In a spare room that doubles as an office, the 90 x 190cm footprint keeps the walkway clear while giving guests a properly supportive bed.
- Crib 5 fire rating for shared settings: The stricter contract-grade fire standard makes this single a sensible pick for student lets and rented rooms where a frame is provided but the mattress isn't.
- Cheap, easy bedding: Standard single sheets and a 135 x 200cm single duvet fit, and both are the most widely stocked bedding of any UK size.
This size suits you if...
You're buying for a child's or teenager's room where the bed shares space with a desk and toy storage, you're a single adult in a compact bedroom or first flat, or you're furnishing a guest room and want one properly built bed rather than something flimsy. The medium firm feel suits back and stomach sleepers best, so it works well for growing kids who change position often.
Consider another size if...
You're an adult who spreads out in the night, or you share the bed even occasionally. The UK small double is 30cm wider at the same length; allow at least 2.4m x 2.8m of floor space for it.
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What size is the Sealy Imperial Contract single mattress?
The UK single measures 90 x 190cm, which is 3ft x 6ft 3in. It's the standard UK one-person size, so it fits any standard single frame or divan. We suggest a room of at least 2.1m x 2.8m so you can walk around the bed and open drawers comfortably.
Is the Sealy Imperial Contract single suitable for a bunk or mid sleeper?
Check your frame's maximum mattress depth first. This mattress is 31cm deep, which is more than many bunk and cabin frames allow, since a tall mattress can raise a child above the safety rail. If your frame specifies a shallower maximum, a slimmer single would be the safer choice.
Is a UK single big enough for an adult?
For one average-sized adult, yes: 90cm of width is the UK standard for solo sleeping, and the 190cm length suits most people. If you're tall, broad or tend to sprawl, the UK small double gives you 30cm more width at the same length and is a comfortable upgrade for one person.
Is this single a good choice for a child's first big bed?
It's a strong candidate. The medium firm hybrid feel gives good spinal support for growing children, and it meets the stricter Crib 5 fire rating. The main caution is depth: at 31cm it sits high on a low children's frame, so check the frame and any guard rail before buying.
Which retailers sell the Sealy Imperial Contract in a single?
Stock moves around, so the most reliable answer is the live comparison table on this page, which is updated as retailers change their prices and availability. Compare the retailers listed here rather than relying on a fixed list, since coverage for individual sizes can change from week to week.