5cm vs 7cm vs 10cm Mattress Topper — Which Thickness Fits Your Sleep?
5cm vs 7cm vs 10cm Mattress Topper — Which Thickness Fits Your Sleep? (Newentor UK)
A refined comparison for UK sleepers: Basic 5cm, Upgraded 7cm (ergonomic), and Premium 10cm (dual-side). All versions are built using high-resilience memory foam to deliver lasting comfort and support.
Why thickness matters — and why memory foam matters more
Thickness determines how much the topper changes your mattress feel. But equally important is the foam: Newentor uses high-resilience memory foam across our 5cm, 7cm and 10cm ranges. High-resilience foam responds faster than older memory foam, gives better support, and maintains bounce — so you get pressure relief without feeling “stuck”.
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At-a-glance comparison
| Feature | 5cm — Basic | 7cm — Upgraded (Ergonomic) | 10cm — Premium (Dual-side) |
|---|---|---|---|
| Profile & purpose | Entry-level comfort boost — light cushioning | Ergonomic upgrade — targeted pressure relief | Premium plush — deep contouring, double-sided usability |
| Foam | High-resilience memory foam | High-resilience memory foam + ergonomic zoning | High-resilience memory foam, thicker layers + dual zones |
| Ideal sleeper | Lightweight, students, guest beds | Most sleepers; side & back sleepers; couples | Heavier sleepers, chronic back pain, luxury seekers |
| Temperature | Better airflow — cooler | Balanced — perforated / gel channels | Warmer — thicker core; engineered vents mitigate heat |
| Care | Removable washable cover | Removable cover; spot-cleanable core | Removable, machine-washable outer cover; core spot-clean |
| Why choose | Affordable, portable, quick upgrade | Best balance of pressure relief & support | Flagship choice — reversible use, highest comfort |
Detailed profiles — how 5 / 7 / 10 differ in everyday UK life
Designed as an affordable first upgrade, the 5cm mattress topper brings immediate comfort to slightly firm mattresses. Because it uses high-resilience memory foam, you still get contouring with faster recovery. Ideal for rental flats, student rooms and guest beds where cost and portability matter most.
Best in the UK when:
- You need a light comfort boost for a firm mattress
- Space & portability are priorities
- You're on a budget but want memory-foam feel
The 7cm topper is engineered with ergonomic zoning and slightly thicker foam to relieve shoulders, hips and lumbar areas. It remains one of the most versatile picks for UK homes—good for couples, those waking with mild back stiffness, or anyone wanting a clear improvement without a full mattress replacement.
Best in the UK when:
- You want notable pressure relief but still preserve mattress support
- You and your partner have different firmness preferences — motion isolation helps
- Your mattress is 2–5 years old and could benefit from a targeted upgrade
The flagship Newentor 10cm topper pairs a thick, supportive base with a softer ergonomic comfort layer on the opposite face — so you can flip it for two distinct feels. Built from high-resilience memory foam throughout, it’s designed for heavier sleepers, people seeking deep pressure relief, and households wanting a luxury, long-lasting upgrade.
Best in the UK when:
- Your mattress is old or shows sagging
- You require firm support plus a plush option — flip for variety
- You experience chronic pressure-related discomfort
Care, warranty & practical tips
All toppers include a removable, machine-washable outer cover. The foam core should be spot cleaned and aired—avoid machine-washing the core. Newentor supports every topper with a standard 2-year warranty; premium 10cm models include extended warranty options in select regions. Always follow product care labels to keep memory foam performing at its best.
Frequently asked questions
What does 'high-resilience memory foam' mean?
High-resilience (HR) memory foam offers faster response to pressure, better bounce and improved durability compared to traditional slow-recovery memory foams. It maintains contouring and support without feeling trapped.
Can I wash the whole topper?
No—only remove and machine-wash the outer cover. The foam core is spot-clean only unless explicitly labelled machine-safe.
Which topper is best for back pain?
7cm is the recommended starting point for mild-to-moderate back pain. For severe or chronic conditions, the 10cm premium (with dual-side ergonomic support) provides additional relief—consult a healthcare professional for persistent pain.
Do thicker toppers sleep hotter?
Thicker cores can feel warmer because they increase contact area; Newentor uses perforations, gel channels and breathable covers to maintain balanced airflow, especially in 7cm and 10cm models.
Explore Newentor Toppers — Shop 5cm / 7cm / 10cm
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