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SLEEPWELL ENERGY S Mattress

Sleepwell Energy S Mattress combines Viscojel foam and Quantech Sleep fabric to deliver refreshing comfort and balanced support. With one firm side, one soft side, and a washable zipped topper, it offers flexible, double-sided sleep comfort.

Price range: £445.00 through £880.00

Furniture size guidelines

The compact and well-proportioned silhouette of both the seats and the small sofa, opens up to a new way of using the dining space.

A new, more intimate way of opening up new visual and proportional horizons of the living space, both in homes and in hospitality venues.‎

The possibility of having both the armchair and the dining and lounge small armchairs.

Specification Chair Armchair Sofas
Height 37" 42" 42"
Width 26.5" 32.5" 142"
Depth 19.5" 22.5" 24.5"
Assembly Required No No Yes
Packaging Type Box Box Box
Package Weight 55 lbs. 64 lbs. 180 lbs.
Packaging Dimensions 27" x 26" x 39" 45" x 35" x 24" 46" x 142" x 25"
SKU: 27SENG1602000200M

KEY TECHNOLOGIES

QUANTECH Sleep Mattress Technology
Istikbal has developed a new sleep formula using Quantum Technology, created by combining five naturally occurring energy stones with nanotechnology, under the name Quantech Sleep. Quantech Sleep Technology helps restore the energy you lose throughout the day while you sleep, supporting you in waking up refreshed, revitalised, and full of energy for the new day.

VISCOJEL Mattress Technology
Viscojel Technology from Istikbal is a pioneer in today’s sleep technology. Viscojel foam, enriched with microbeads, provides exceptional support by perfectly adapting to the body’s anatomy, creating an ideal environment for quality sleep. Compared to standard foams, it offers superior comfort with enhanced breathability and higher thermal conductivity. It responds to body temperature, helping to reduce sweating in summer while providing a warm and comfortable sleep environment in winter.

SMARTLINK Mattress Technology
SL Spring Technology delivers a firm sleeping surface for those who prefer firm mattresses, combining lightweight structure with reliable support. The springs connect as a continuous unit, moving together with equal resistance to prevent deformation and ensure long-term durability. Thanks to a higher spring count per square metre, the system adapts closely to body contours and supports increased body weight. Its thinner wire and unique spring design create a firmer, high-performance structure that works in harmony, promoting natural sleep movements and helping muscles relax during rest.

SECTION VIEW

Sleepwell Energy S Mattress section view
  1. Knitted mattress fabric and quilted layers
  2. Removable quilted mattress layer and filling materials
  3. Special Viscojel foam
  4. Extra comfort–enhancing soft foam
  5. Special felt layer for even weight distribution
  6. High-density edge support foam
  7. SL spring system
  8. Special felt layer for even weight distribution
  9. Extra comfort–enhancing firm foam
  10. Bottom quilted layers

MATTRESS COMFORT LEVEL: ONE SIDE MEDIUM-FIRM, THE OTHER SIDE FIRM

One side medium firm other side firm mattress comfort level

DESCRIPTION

Sleepwell Energy S Mattress is designed to deliver a balanced sleep experience by combining advanced comfort technologies with practical functionality. Featuring a special Viscojel foam layer and Quantech Sleep mattress fabric, it helps create a comfortable and supportive sleep environment so you can wake up feeling refreshed and energised.

The Quantech Sleep fabric supports the body’s natural balance during sleep and helps maintain a stable sleeping temperature throughout the night, contributing to improved comfort and relaxation. The Viscojel foam, enriched with microbead technology, adapts perfectly to the body’s structure, offering superior support compared to standard foams while providing a cooler and more comfortable sleep surface.

Designed with dual comfort, the mattress offers one firm side and one soft side, allowing you to choose the feel that best suits your preference. Thanks to its double-sided use, the mattress can be flipped to extend durability and comfort over time.

For added practicality, Sleepwell Energy S features a zipped, removable topper, which can be used on both sides of the mattress and is machine washable, making maintenance simple and hygienic.

Ideal for those seeking a medium-soft to firm sleep option, Sleepwell Energy S combines innovation, comfort, and everyday convenience in one versatile mattress.

SIZE GUIDE

SizeCMInchesUK Equivalent (ft/in)
Single90 × 19035 × 753ft × 6ft 3
Euro Single90 × 20035 × 793ft × 6ft 6
Wide Single100 × 20039 × 793ft 3 × 6ft 6
Small Double120 × 19047 × 794ft × 6ft 3
Euro Small Double120 × 20047 × 794ft × 6ft 6
Double140 × 19055 × 754ft 6 × 6ft 3
(Fits UK 135cm bases)
Euro Double140 × 20055 × 794ft 6 × 6ft 6
King Size150 × 20059 × 795ft × 6ft 6
Euro King160 × 20063 × 795ft 3 × 6ft 6
Super King Size180 × 20071 × 796ft × 6ft 6
Emperor200 × 20079 × 796ft 6 × 6ft 6
SizeDouble – 140x190cm (4’6×6’3)4'6 × 6'3 – 140 × 190 cm, Emperor – 200x200cm (6’6×6’6)6'6 × 6'6 – 200 × 200 cm, Euro Double – 140x200cm (4’6×6’6)4'6 × 6'6 – 140 × 200 cm, Euro King – 160x200cm (5’3×6’6)5'3 × 6'6 – 160 × 200 cm , Euro Single – 90x200cm (3’×6’6)3'0 × 6'6 – 90 × 200 cm , Euro Small Double – 120x200cm (4’×6’6)4'0 × 6'6" – 120 × 200 cm, King – 150x200cm (5’×6’6)5'0 × 6'6 – 150 × 200 cm, Single – 90x190cm (3’×6’3)3'0 × 6'3 – 90 × 190 cm, Small Double – 120x190cm (4’×6’3)4'0 × 6'3 – 90 × 190 cm, Super King – 180x200cm (6’×6’6)6'0 × 6'6 – 180 × 200 cm, Wide Single – 100x200cm (3’3×6’6)3'3 × 6'6 – 100 × 200 cm
Spring TypeSL Spring
Foam TypeViscojel Foam, Extra Comfort-enhancing Soft Foam
Mattress TechnologyQuantech Sleep, Viscojel
Mattress FirmnessOne Side Medium-Firm, One Side FirmOne Side Medium-Firm, One Side Firm
Height27 cm
FeaturesE1 Grade Materials, Dual-Sided Use, Edge Support Foam, Knitted Fabric, Machine Washable Topper, Removable Zipped-On Topper

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About brand

ISTIKBAL

Kayseri / Türkiye

If You Have Questions Please, Contact Us

For more ways to get in touch, please visit our Contact Us page.

    Istikbal is Türkiye's leading furniture brand, recognized for setting industry standards through innovation, quality, and customer-focused design. Since 1957, it has shaped modern living with furniture that combines comfort, function, and contemporary design, with a presence across international markets.

    From living spaces to bedrooms and beyond, Istikbal creates complete home furnishing solutions designed for everyday life, while using natural resources responsibly and focusing on long-term value for people and the environment.