Everyday Comfort with Reliable, Traditional Spring Support.
The Harmony Bonnell Spring mattress delivers dependable comfort using a classic open-coil system designed for users who want value, reliability, and firmness without unnecessary extras. Simple, supportive, and built for everyday performance.
Construction Breakdown
Bonnell Open-Coil System - firm, evenly distributed support across the entire mattress.
Comfort Foam Top Layer - softens the surface and improves pressure relief.
Breathable Quilted Cover - enhances airflow and keeps the top surface fresh.
Stabilised Edge Framework - maintains shape and reduces roll-off.
Best For
Guest rooms, landlords, rental properties, or customers wanting an affordable, firm mattress.
Why Customers Choose It
Reliable, no-fuss support
Excellent value
Durable coil system
Breathable & easy to maintain
Available Sizes (UK Standard):
- Single (3ft) - 90cm x 190cm
- Small Double (4ft) - 120cm x 190cm
- Double (4'6ft) - 135cm x 190cm
- King (5ft) - 150cm x 200cm
- Super King (6ft) - 180cm x 200cm
Size Guide:
All sizes follow UK standard mattress dimensions and fit all standard UK bed frames.
- Single: Ideal for teens, children, and smaller bedrooms.
- Small Double: Great for solo sleepers seeking more width.
- Double: Leading UK size for couples.
- King: More room and enhanced comfort for two sleepers.
- Super King: Maximum sleeping space and premium luxury.
