Giselle 16cm Medium-Firm Mattress | King

The Giselle Bedding Serena Series is a 16cm-thick King mattress with a Tight Top design. The mattress is built around a Bonnell spring core with an enhanced 6-turn coil for consistent support and durability. High-density foam comfort layers sit above the springs, with reinforced edge support helping the mattress maintain its shape and reduce sagging.

A 150g knitted fabric cover provides a soft, breathable finish on the sleep surface. The medium-firm feel suits a range of sleep preferences and the lower 16cm profile makes the mattress a practical fit for trundle beds, daybeds, or rooms where a slimmer mattress is preferred.

Features

• Giselle Bedding Serena Series
• 16cm thickness
• Tight Top design
• Medium-firm feel (6.5/10)
• Bonnell spring core
• Enhanced 6-turn coil
• High-density foam comfort layers
• 150g knitted fabric cover
• Reinforced edge support

Specifications

• Brand: Giselle Bedding
• Size: King — 183cm × 203cm × 16cm
• Firmness: Medium Firm (6.5/10)
• Colour: Grey
• Packaging: Vacuum-packed; expands to full shape within ~24 hours
• Assembly required: No
• Number of packages: 1
• Warranty: 5 years

Frequently asked

Is this mattress hypoallergenic or dust mite resistant?
All mattresses gradually collect allergens through normal use. A mattress encasement can help create a barrier between you and the mattress surface.

• Encase the whole bed — mattress, pillows and quilt — for full coverage where you sleep. Shop the dust mite encasement range.
• Short on budget? Start with the mattress. A dust mite mattress protector covers the biggest surface for the lowest spend — then add a pillow protector and quilt protector later.
• Backed by research. A 2003 clinical trial found mattress and pillow encasings significantly reduced dust mite allergen levels over 12 months.
• Get the full setup right. Our low-allergen bedroom guide covers encasements, washing and humidity in one place.

Managing a diagnosed allergy? Your GP or allergy specialist can advise on what's right for you.

What's the difference between Bonnell and pocket springs?
Bonnell springs are connected, hourglass-shaped coils that move together as a unit. Pocket springs are individually wrapped in fabric pockets, so each spring responds independently to weight and movement. The Serena Series uses a Bonnell spring system, which generally offers consistent firm support at a lower price point. If you want reduced motion transfer for partner sleeping, a pocket spring mattress is usually a better fit — see our full mattress range.

What is a Tight Top mattress?
A Tight Top mattress has a flat, firm sleep surface without the additional cushioning layer of a Pillow Top or Euro Top. The padding is integrated into the cover rather than added as a separate top layer. This generally produces a firmer, more supportive feel.

Will this fit a dust mite mattress encasement?
This mattress is 16cm deep, 183 × 203cm (King). Encasements sized for 15–25cm King mattresses fit. Browse our mattress encasement range for current sizing.

What sizes is this mattress available in?
This listing is the King. The Serena Series is also available in Single and King Single — see our full mattress range.

How does it arrive?
Vacuum-packed in a box for easy delivery and room access. Allow up to 24 hours after unboxing for the mattress to fully expand to its 16cm profile.

Package contents

• 1 × Giselle Bedding Serena Series Mattress

This product comes with 5 years warranty.