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FAQ’s

At John Ryan By Design, we pride ourselves on offering not only amazing mattresses, but also straight-talking, quality information about the world of mattresses. You might say that we’re obsessed with mattresses, and because of that our in-house team of experts are always on hand to answer your questions, and provide you with a wide range of advice and guidance.

However, when you’ve been doing this for as long as we have, you tend to notice that some questions get asked very regularly. We’ve therefore listened to what you need to know, and have put together a growing series of FAQs to help you to quickly find the answers you need!

2 different mattresses can’t be zipped together because they would never be exactly the same depth or settle at a uniform rate. Each side of the mattress would behave differently. For example, a memory foam mattress is designed to be one-sided, so coupling one to a pocket sprung mattress – that needs turning – simply wouldn’t be feasible. However, zip and link mattresses are available if only one form of mattress is being considered. You can read our long guide to zip and link beds and mattresses to find out everything you need to know.

A hybrid mattress is a mattress that mixes various comfort and/or support materials together. The term could also be used to describe a combination of design styles in a mattress. All the different foams, springs, and comfort and/or support units are layered together (usually glued) to create different feels and marketing angles. The idea behind them is to try and present all the best bits of different mattresses in one product. However, the reality is that they are simply unable to serve as anything other than an entry-level product, with all of the downsides of a one-sided (or “no turn”) mattress. You can find out more in our longer Hybrid Foam article.

Memory foam mattresses are made from a man-made, chemically-produced, high-density, viscous, open-cell foam that changes shape with heat. “Heat-reactive foam” would actually be a more accurate name, as low density variants that don’t work like this are usually classed as “hybrids”. Memory foam mattresses do not remember your body shape indefinitely. The instant you get up, the absence of your body heat allows the mattress to un-mould again. There’s no uniform specification for a memory foam mattress, and they come in a variety of densities and firmness ratings, although we’d consider all memory foam to be no more than a basic/starter material. Our extensive guide covers memory foam mattresses in greater detail.

An open coil mattress is built using one continuous thread of metal that’s coiled into loops. This coil is then attached to wireframe. It’s a mattress that essentially contains one enormous bouncy spring, which is the reason why both sides of the mattress will behave as one. There’s no independence or separation from the spring. Open coil mattresses are also known as continuous coil, interconnected coil/spring, cage sprung, bonnell sprung, Miracoil, true coil or orthopaedic sprung mattresses, but there’s one common point to make: the only reason for using an open coil in a mattress is to keep the price low. Unless your budget for a mattress is limited to below £300, there really is no reason to buy anything that’s open coil! You can read our dedicated article to find out how open coil mattresses compare to pocket sprung mattresses.

An orthopaedic mattress is an industry term that’s used to describe any mattress that has a super firm spring tension or support unit. They use 1.94mm 12 gauge wire, which is the firmest possible option for a conventional spring. They are very firm. The biggest issue with this type of mattress is that they’re widely accepted as the ideal choice for sleepers who suffer from a bad back, but in reality they suit only a tiny fraction of sleepers. This is because their springs will only compress beneath something like an 18-stone bodyweight, so lighter sleepers are effectively sleeping on something like a table! This orthopaedic mattress article debunks the myths.

A pocket sprung mattress uses lots of springs that are individually covered in polyester or Calico (depending on the quality of the mattress). Pocket spring mattresses give the best support on the market, because each spring works independently. You won’t get a “trampoline” effect where the entire bed shakes at once. Instead, the sections of the mattress that are exposed to pressure will properly support you without the whole thing compressing. In addition to resisting movement transference, pocket sprung mattresses have zero roll together, a consistent level of firmness, and their spring tensions can be tailored to match body weight and preferred sleeping position. Our definitive guide to pocket spring mattresses will tell you everything you need to know!

Pillow top mattresses effectively have a mattress topper permanently attached to them. If you can grasp the top layer of a mattress and separate it a little from the “core”, then it’s a pillow top. They give the illusion of a super deep, sumptuously-upholstered product, but that level of comfort is short lived. Pillow top mattresses are one sided; you can’t flip them, so once they settle or sag you are stuck with an uncomfortable mattress. They look fantastic, but have a very short shelf life. Our guide to pillow top mattresses explains their flaws in more detail.

A mattress topper is an extra, detachable, comfort later that’s added to a mattress to make it more comfortable, and also to help it last longer. We consider a topper to be a necessity for any mattress that’s one sided (i.e. no-turn), as they help to extend the short lifespan of this type of mattress. For a two-sided mattress, whether a mattress topper is needed or not is really down to personal preference, as well as the quality and price of the topper in question. Both of these things vary greatly, as the market has become rather flooded with mattress toppers in recent years. You can learn more in our in-depth article about mattress toppers.

A mattress protector is usually a quilted polycotton/cotton fitted sheet that’s designed to shield a mattress from sweat, spills and other fluids that can result in stains. It’s basically a washable cover that you use beneath your bedding. A mattress protector needs to encase whatever surface your body comes into direct contact with and, as such, a protector will need to go over the top of a mattress topper. A mattress protector is essentially a thinner, washable mattress topper that doesn’t act as a comfort layer. Whether or not a mattress topper is desirable depends on whether your mattress is one-sided and how comfortable you find it to be, but we always recommend a mattress protector (even if you have a topper). You can find out more in our dedicated exploration of mattress protectors.

Premier Inn uses a 1000 pocket spring mattress made by the UK-based firm, Hypnos. For domestic use, the biggest flaw with this mattress is the attached pillowtop, as it drastically reduces the lifespan of the mattress. You can find out more details, and receive plenty of comparative information and alternative suggestions, in our Premier Inn Mattress Review.

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