We've all experienced the effects of a bad night’s sleep. That groggy awakening coupled with back pain, a cricked neck and a feeling of having had no sleep at all. But what about the effects of a good night’s sleep? These are a lot less common, it appears, given how much coffee humans seem to get through each day. Well, I've been exploring the world of memory foam mattresses and have compiled a list of the top 5 currently on the market. It includes the best foam mattress for back pain, an acute problem that so many of us suffer from thanks to the wrong mattress. This guide will suggest the best mattresses for everyone out there, from side-sleepers to stomach-sleepers!What is Memory Foam?For those of you who are new to the wonders of memory foam, let me take you on a little journey that will change your life forever. In short, memory foam is an absolute miracle product. It allows your mattress to shape to your body and hold that shape, cushioning you in its safe little cocoon. Did you know that it was first developed in the 1960s by NASA's Ames Research centre for safety cushions to be used on their aircraft? Whatever odd position you may sleep in, memory foam supports your body and moulds to fit your shape. There's something in the basic engineering of memory foam which means it responds to your body’s temperature and wraps around you to keep you comfortably snug. All the delicious warmth of an electric blanket, none of the fire hazard! Don't worry, whilst memory foam is great in the winter due to its boost in temperature, you'll be fine to curl up on one in the summertime. Most now come with the promise of ventilation and temperature control.There are a variety of different memory foam mattresses out there, which can make it tricky to choose. Luckily, my love of sleep is here to help you out! Most normal mattresses use springs to provide comfort and a bouncy bed– memory foam tends to be different. Most memory mattresses use layers of memory foam throughout, with a top layer of extra foam in order to offer up the most cushiony goodness possible. Other memory mattresses are essentially just a top coating of squishy, marshmallow memory foam on top of a regular, spring-loaded mattress.Naturally, these different forms also differ in price, with the ‘pure’ memory mattresses being a little bit more on the expensive side. It's important to remember that you get what you pay for when it comes to memory foam. It's unlikely you'll buy many more mattress in your life – investment buys should be about quality! That said, I'm nothing if not a bargain hunter, so I’ve done my best to find products which come with all the bells and whistles, just not with a hefty price-tag.My favorite thing about memory mattress so far has to be their versatility and ability to adapt to whatever weird things your body decides to do in the night! For restless sleepers, this type of mattress constantly regulates your body temperature, so it moves as you move. I've also found the best memory foam mattress for side-sleepers, along with one for those of you who sleep on your stomach. Read on to find more about my memory foam mattress reviews... 5 Top Memory Foam Mattress For Side Sleepers ImageModelHeight (in)PriceRating Foam Mattress Pad Bed Topper - Red Nomad2$ Best Price Mattress 10-Inch Memory Foam Mattress10$$ Signature Sleep Memoir 12-Inch Memory Foam Mattress12$$$ LUCID 10 Inch Gel Memory Foam Mattress10$$ Sleep Innovations Shiloh 12" Memory Foam Mattress12$$$$ Foam Mattress Pad Bed Topper - Red Nomad This is my favorite budget buy, coming in at under $100 from Red Nomad. Whilst technically a mattress-topper, this is perfect for anyone who wants to dip a toe into the luxurious waters of memory foam without having to commit to a pricey experiment! This topper made my list for several reasons – the most important being that it offers excellent ventilation. This is a comfort for those of you who naturally run hot and are worried about the overheating that can accompany memory foam’s temperature-controlled design. This topper is a squishy 2 inches thick, meaning you get a great night’s sleep with relatively deep cushioning. Another reason I love this is its pressure-relieving technology, meaning you sleep well regardless of what position you fall asleep in, or wake up in! Check The Best Price Here Best Price Mattress 10-Inch Memory Foam Mattress This memory mattress is one of the best out there, and is great for those who want to splurge a little! I'd say this is the best memory foam mattress for side sleepers due to the way its built.This thick mattress gives you ten full inches of pleasure without any of the pain. It's designed to avoid putting pressure on certain parts of your body, so you can comfortably sleep on your side without waking to aching hips and dead shoulders.Perfect for sleeping alone or with a partner – these clever chaps have made sure that all movement is isolated to each individual’s side of the bed. You can move around as much as you like without disturbing your partner. Sadly, there's not a snore-setting for this yet! Check The Best Price Here Signature Sleep Memoir 12-Inch Memory Foam Mattress Signature Sleep knows exactly what they're doing with this miracle mattress!This comfy haven provides plenty of support while remaining gentle on your body. It's designed to minimise sleep disturbance. Fling yourself around to your hearts content without worrying about waking your partner.Again, as with all good memory mattresses, this is designed to take the weight off your joints and pressure points. This means you won't feel weary when you wake.This is a little on the firm side compared to the other mattresses on my list but as soon as you're in, you'll be away! Check The Best Price Here LUCID 10 Inch Gel Memory Foam Mattress I just had to include this on my list - it's a gel mattress! This type of memory mattress is perfect for anyone who's constantly toasty, as the gel maintains an ideal temperature to sleep. This mattress will keep you sleeping soundly and waking up fresh, thanks to its ventilation abilities. Its ten inches are packed with the latest technology, allowing it to mould to your body. It keeps your body temperature regulated and provides you with a perfect night's sleep! Whilst it's on the more expensive end of the mattresses I've reviewed, it's still an absolute bargain when you consider what you're getting for the price. This mattress lasts for years and maintains its squish... Check The Best Price Here Sleep Innovations Shiloh 12" Memory Foam Mattress And now one for the big spenders among you! This gem from Sleep Innovations is perfect for anyone who currently wakes up aching.It tailors itself to your body, whatever size you are, and markets itself as being ideal for 'average to bigger' bodies.This is probably due to its amazing ability to eradicate pressure point pain while you sleep. There's no unwanted force on your joints while you slumber. It's also the best memory foam mattress for stomach-sleepers. It promises to cradle you in comfort however much you move around.So far, so good! It's a little on the pricey side, I know, but it's a fab investment buy which guarantees 20 years of good sleep, so it's well worth the initial fee. Check The Best Price Here Finding the perfect mattress for your body can be tiring work (I couldn't resist!). Hopefully, you've found my memory foam mattress reviews useful.We all want the same thing from a mattress, really. We want to be comfy, undisturbed, warm but not hot, cool but not cold and we want to wake up feeling refreshed rather than grouchy!Not too much to ask, surely?Memory foam mattresses are the way to go, as they offer all of the above, with the added joy of pressure point relief and isolated sleep movements.Sleep tight!