At the heart of any quality mattress, there must be quality spring units and this is a requirement that we can proudly say all of our mattresses meet. Whilst the upholstery layers and covering of a mattress provide the luxurious comfort feeling you get when lay on a pocket spring mattress, it is the spring that does the more important job of providing the support required. Simply coupling the best upholstery materials with a poor spring unit would certainly not make for a great mattress, or a great night’s sleep.

Spring Material

All of the springs we use, be they in our spunbond pockets, or in our Calico pockets, are made purposely from Vanadium steel, which in comparison to many manufacturers who simply use steel springs, is a significant plus point when it comes to quality. Vanadium is used by top end manufacturers to provide their highest quality springs, since its characteristics guarantee that the spring units are both strong and durable.

Spring Count

Its worth noting that when the number of pocket springs are noted by manufacturers, the industry standard is that they are referencing the quantity of springs contained within a king size mattress. On smaller, or equally larger sized mattresses, the quantities will proportionally vary simply because of the physical space that the springs have to fill within the mattress.  

Type of Spring Units

The majority of all mattresses within the UK have spring units at their core, however there are three main types of spring construction details that are available. The first and most common mattress spring unit is open coil, or as sometimes referred Miracoil units. These involve springs that are arranged in rows, which are then connected to each other within an outer wire frame.  Continuous coil spring units, whilst very similar to open coil units, providing slightly higher spring counts due to the use of smaller gauge wire and spring sizes. These are made from a single length of wire, which is knitted into a series of interwoven springs which runs up and down the bed, and are then linked vertically.

Both of these types are generally mass produced, with low production costs, and are geared towards the lower end budget mattresses. Their construction detail means that the springs within the mattress effectively move as one unit. This invariable means that any movement during your sleep can disturb your partner, and the spring’s themselves wear out quicker, leaving ‘roll-in’ pockets within the mattress.

Here at Alexandra Designs, our focus is both on the quality within the mattress and its longevity, but also in the quality of sleep support the mattress provides. For these reasons we only use the third type of spring construction, and the only one that we would recommend considering, pocket springs. Each of our pocket springs are individually formed from Vanadium steel, and are then encased within either individual spunbond, or natural fibre pockets.

The fact that the springs are independent to one another, means that they can compress separately, and therefore eliminate the experience of ‘roll-in’. Pocket spring units are far more responsive when conforming to the shape and sleeping position of a person, distributing your weight more efficiently, and ultimately therefore provide excellent support and comfort during your sleep.

Calico pocket springs are the highest quality springs units you can get within a mattress, and some of the highest quality bed manufacturers in the market, such as ViSpring and Savoir, use these within their mattresses. In order to offer the best in supportive qualities, we make use of these high end spring units, within our Tatton Deluxe, Tatton Supreme and all of our Prestbury range mattresses.

Using traditional methods and time served expertise and craftsmanship, our handcrafted Calico pocket springs are individually sewn within their own natural fibre encasement. These are then carefully laid out and nested in rows, before being hand stitched together in a specific, intermittent pattern. This hand stitching process ensures the spring units are secured within the mattress unit, whilst providing each spring pocket with the flexibility to compress independently to one another, and provide you with the ultimate level of support and comfort.

The use of the natural fibre encasement not only provides this flexibility for the springs, but also improves the breathability and absorbent qualities of the mattress. Coupled with the natural materials used in the upholstery of our Calico spring mattresses, these natural encasements contribute to the airflow inside the mattress, helping to maintain the coolness and freshness of the mattress.

Spunbond pocket springs involve the springs being placed within a nonwoven fabric sack, before each spring is heat glued into its own individual pocket. These lengths of pocket springs are then laid out in rows, where the synthetic fabric is secured together using heated glue, to create the mattress core. Whilst this is a faster process than the stitched Calico pocket springs, which allows us to provide the supportive quality of our pocket springs at a more affordable price level, the spring units still retain a high level of flexibility required to conform to your sleep and posture characteristics. All of our Delamere range, and both of our Tatton Classic mattresses make use of our excellent spunbond pocket spring units.