(Image credit: Future)

As a combination sleeper who flips from side sleeping to front, back, and side again, it's difficult to find a mattress that will support me in all positions. However, the Thermobalance LX Elite, now $2,239 for a queen at Brooklyn Bedding (was $3,199) has done a superb job over the past month.Not to mention the fact it's also helped me sleep incredibly cool. Sure, the best mattresses we've tested this year may offer all-round performance at a kinder price point, but built with durable latex, the Thermobalance promises a longer lifespan (latex mattresses can last up to 20 year if cared for correctly). It's still undoubtedly a premium price. However, the Thermobalance LX Elite just dropped to its lowest price since in the Memorial Day mattress sales, making right now the best time to make the investment in your sleep.Outstanding support for the next two decadesOne thing about me: I'm super restless. I'll start the day working at my desk, move to the sofa, and sometimes end up working from the floor. And it's the same story through the night. I just can't stay in one position.So, when choosing a mattress, I need one that a) I can easily move around on; and b) keeps me cool while I'm wriggling.I'm pleased to report the medium-firm Thermobalance LX Elite has ticked boxes. Thanks to the combination of foams, zoned coils, and firm latex, my hips don't dip when I'm on my front or back, but there's still enough cushioning around my joints when I'm on my side. And changing position isn't a chore as the mattress surface feels buoyant and responsive.Do note, however, this is coming from a petite mattress tester and a heavier sleeper may find the foams suck them in more.Now I was conscious that the latex would be too bouncy, carrying my movements across the bed to disrupt my partner, but it's been surprisingly peaceful. The Thermobalance LX Elite performed well in objective motion isolation tests, too, indicating it's a good choice for couples.