Silentnight
Comparison
Silentnight Ortho Dream Star vs Sealy Mellbreak Ortho Plus 2026
These traditional sprung orthopaedic mattresses are aimed at shoppers who actively want a firm sleeping surface. They share several strengths, but differ in depth, edge support, current price and how uncompromising the firmness feels.
Our Quick Answer
Silentnight Ortho Dream Star and Sealy Mellbreak Ortho Plus are both firm open-coil mattresses with 100-night retailer trials and five-year warranties. Silentnight is 22cm deep; Sealy is 28cm.
Both are firm open-coil mattresses
Both have 100-night trials and five-year warranties
Silentnight is 22cm deep
Sealy is 28cm deep
Comparison
Verified Side-by-Side Table
This table uses current published products and verified information stored in our catalogue. Category comparisons update automatically as eligible products are added or removed. Missing information is intentionally left blank rather than estimated. Prices and retailer terms can change, so check the retailer before buying.
Sealy
Sealy Mellbreak Ortho Plus Mattress
From price
Silentnight
Silentnight Ortho Dream Star Miracoil Mattress
£233
Sealy
Sealy Mellbreak Ortho Plus Mattress
£324
Single price
Silentnight
Silentnight Ortho Dream Star Miracoil Mattress
£233
Sealy
Sealy Mellbreak Ortho Plus Mattress
£324
Double price
Silentnight
Silentnight Ortho Dream Star Miracoil Mattress
£317
Sealy
Sealy Mellbreak Ortho Plus Mattress
£428
King price
Silentnight
Silentnight Ortho Dream Star Miracoil Mattress
£373
Sealy
Sealy Mellbreak Ortho Plus Mattress
£474
Super King price
Silentnight
Silentnight Ortho Dream Star Miracoil Mattress
£457
Sealy
Sealy Mellbreak Ortho Plus Mattress
£594
Mattress type
Silentnight
Silentnight Ortho Dream Star Miracoil Mattress
Open Coil
Sealy
Sealy Mellbreak Ortho Plus Mattress
Open Coil
Firmness
Silentnight
Silentnight Ortho Dream Star Miracoil Mattress
Extra firm
Sealy
Sealy Mellbreak Ortho Plus Mattress
Firm
Depth
Silentnight
Silentnight Ortho Dream Star Miracoil Mattress
22 cm
Sealy
Sealy Mellbreak Ortho Plus Mattress
28 cm
Sizes
Silentnight
Silentnight Ortho Dream Star Miracoil Mattress
Single, Small Double, Double, King, Super King
Sealy
Sealy Mellbreak Ortho Plus Mattress
Single, Small Double, Double, King, Super King
Sleep trial
Silentnight
Silentnight Ortho Dream Star Miracoil Mattress
100 nights
Sealy
Sealy Mellbreak Ortho Plus Mattress
100 nights
Warranty
Silentnight
Silentnight Ortho Dream Star Miracoil Mattress
5 years
Sealy
Sealy Mellbreak Ortho Plus Mattress
5 years
Product information
Key features
Silentnight
Silentnight Ortho Dream Star Miracoil Mattress
- Miracoil spring support system
- Eco Comfort Fibre layer
- Extra-firm feel
- 22cm depth
Sealy
Sealy Mellbreak Ortho Plus Mattress
- PostureTech Core Support springs
- Soft white fibre comfort layer
- Edge support
- Double-sided construction
- 28cm depth
Product details
Silentnight
Silentnight Ortho Dream Star Miracoil Mattress
An extra-firm orthopaedic-style sprung mattress using Silentnight's Miracoil support system and an Eco Comfort Fibre comfort layer.
Sealy
Sealy Mellbreak Ortho Plus Mattress
A firm traditional sprung mattress using Sealy's PostureTech Core Support system, soft white fibres and reinforced edge support.
Current product page
The Essentials
What Really Matters
Type
Both are open-coil mattresses.
Firmness
Both are recorded as firm.
Depth
Silentnight is 22cm; Sealy is 28cm.
Buying Advice
How to Choose the Right Mattress
Verified differences
The main verified differences in the catalogue are depth, product construction details and current stored price.
Our Tip
Mattress prices and promotions change regularly. Compare the current size-specific price and retailer terms before ordering.
Quick Checklist
Do's & Don'ts
Do's
- Check the price for your exact mattress size
- Read the full sleep-trial conditions
- Confirm the mattress feel suits your sleeping position
- Check delivery, collection and recycling arrangements
Don'ts
- ✕Choose on score alone
- ✕Compare only the headline price
Questions
Frequently Asked Questions
Silentnight Ortho Dream Star is assessed as extra firm, while Sealy Mellbreak Ortho Plus is firm.
They may feel too firm for many side sleepers, particularly anyone needing cushioning around shoulders and hips.
Check the current care instructions supplied by the retailer; rotation and turning requirements can differ by model construction.
Keep Reading
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Evidence
Sources & Evidence
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