Sleep Better from the Very First Night

Some mattresses just feel right from the moment you lie down. The Siam Sleep Mattress is one of them. Engineered with a thoughtful blend of support and softness, it’s built for sleepers who want genuine rest without paying a premium. Medium feel, UK-made, and designed to last, the Siam delivers night after night.

Built in Layers. Balanced for Comfort.

The Siam isn’t a single-foam mattress with a fancy cover. Its construction works in stages, each layer doing a specific job:

• 175mm Reflex Foam, a firm, responsive base that keeps your spine properly aligned throughout the night
• 50mm Memory Foam conforms to your body’s shape, easing pressure points at the shoulders, hips, and lower back
• 25mm GelFlex adds a cooling, plush top layer that helps regulate temperature so you’re not waking up overheated
• Bonnell Spring Unit adds bounce, structure, and motion absorption, reducing sleep disturbance if you share the bed

Together, these layers give the Siam a feel that’s neither too firm nor too soft, supportive where it counts, cushioned where you need it.

Designed for Everyday Life

The Siam is built with practicality in mind. The hypoallergenic construction keeps the sleep environment clean, ideal if you’re sensitive to dust or allergens. The zipped stretch-knit cover makes it easy to remove and maintain. And because it’s a turnable design, you can flip it regularly to extend its lifespan and maintain consistent comfort year after year.

Who It’s For

The Siam is a great match if you:

• Want a step up from a basic mattress without spending over £250
• Share a bed and need decent motion isolation
• Run warm at night and need something breathable
• Prefer a medium feel, not memory foam, only soft, not orthopaedic firm

It pairs particularly well with Style Beds’ upholstered bed frames and ottoman divans, where the slatted or solid base complements the Bonnell spring construction.

Sizes & Dimensions

Key Specifications

• Medium feel
• Bonnell spring unit
• 175mm Reflex Foam + 50mm Memory Foam + 25mm GelFlex
• Hypoallergenic construction
• Zipped stretch-knit cover
• Turnable design
• Mattress handles
• Made in the UK

Why Buy From Style Beds

Every Siam Sleep Mattress comes with our 3-year warranty covering manufacturing defects, a 30-night risk-free trial with free returns if it’s not right for you, and free UK delivery as standard. We deliver using our own vans, typically within 3–5 working days, no third-party couriers, no guessing games.

The Siam Sleep Mattress. Practical comfort, properly engineered.